Auto merge of #15522 - SomeoneToIgnore:resolve-inlay-hints, r=Veykril

Resolve inlay hint data

Part of #13962

Support https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#inlayHint_resolve better, by omitting all inlay hint fields specified in the client hint resolve capabilities.

Current list of all capabilities possible to resolve later:
```
"textEdits"
"tooltip"
"label.tooltip"
"label.location"
"label.command"
```

and every one specified in the client capabilities is now resolved by r-a, being omitted in the initial response.

--------------

When editing `inlay_hints.rs` file around line `457` with no resolve capabilities, I get
<details>
  <summary>resolved json, 10803 characters</summary>

```json
{"jsonrpc":"2.0","id":55,"result":[{"position":{"line":477,"character":1},"label":[{"value":"fn inlay_hints","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/ide/src/inlay_hints.rs","range":{"start":{"line":445,"character":14},"end":{"line":445,"character":25}}}}],"paddingLeft":true,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":451,"character":10},"label":[{"value":": "},{"value":"ProfileSpan","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/profile/src/hprof.rs","range":{"start":{"line":85,"character":11},"end":{"line":85,"character":22}}}},{"value":""}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":451,"character":27},"label":[{"value":"label:","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/profile/src/hprof.rs","range":{"start":{"line":60,"character":12},"end":{"line":60,"character":17}}}}],"kind":2,"paddingLeft":false,"paddingRight":true,"data":{"file_id":0}},{"position":{"line":452,"character":12},"label":[{"value":": "},{"value":"Semantics","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/hir/src/semantics.rs","range":{"start":{"line":108,"character":11},"end":{"line":108,"character":20}}}},{"value":"<'_, "},{"value":"RootDatabase","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/ide-db/src/lib.rs","range":{"start":{"line":75,"character":11},"end":{"line":75,"character":23}}}},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":453,"character":12},"label":[{"value":": "},{"value":"SourceFile","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/syntax/src/ast/generated/nodes.rs","range":{"start":{"line":223,"character":11},"end":{"line":223,"character":21}}}},{"value":""}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":454,"character":12},"label":[{"value":": &"},{"value":"SyntaxNode","location":{"uri":"file:///Users/someonetoignore/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rowan-0.15.11/src/api.rs","range":{"start":{"line":15,"character":11},"end":{"line":15,"character":21}}}},{"value":"<"},{"value":"RustLanguage","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/syntax/src/syntax_node.rs","range":{"start":{"line":15,"character":9},"end":{"line":15,"character":21}}}},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":456,"character":12},"label":": i32","kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":458,"character":15},"label":[{"value":": "},{"value":"Vec","location":{"uri":"file:///Users/someonetoignore/.rustup/toolchains/stable-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/vec/mod.rs","range":{"start":{"line":395,"character":11},"end":{"line":395,"character":14}}}},{"value":"<"},{"value":"InlayHint","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/ide/src/inlay_hints.rs","range":{"start":{"line":149,"character":11},"end":{"line":149,"character":20}}}},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":460,"character":21},"label":[{"value":": "},{"value":"SemanticsScope","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/hir/src/semantics.rs","range":{"start":{"line":1651,"character":11},"end":{"line":1651,"character":25}}}},{"value":"<'_>"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":460,"character":36},"label":[{"value":"node:","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/hir/src/semantics.rs","range":{"start":{"line":482,"character":24},"end":{"line":482,"character":28}}}}],"kind":2,"paddingLeft":false,"paddingRight":true,"data":{"file_id":0}},{"position":{"line":461,"character":23},"label":[{"value":": "},{"value":"FamousDefs","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/ide-db/src/famous_defs.rs","range":{"start":{"line":20,"character":11},"end":{"line":20,"character":21}}}},{"value":"<'_, '_>"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":463,"character":17},"label":[{"value":": impl FnMut("},{"value":"SyntaxNode","location":{"uri":"file:///Users/someonetoignore/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rowan-0.15.11/src/api.rs","range":{"start":{"line":15,"character":11},"end":{"line":15,"character":21}}}},{"value":"<"},{"value":"RustLanguage","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/syntax/src/syntax_node.rs","range":{"start":{"line":15,"character":9},"end":{"line":15,"character":21}}}},{"value":">)"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":463,"character":25},"label":[{"value":": "},{"value":"SyntaxNode","location":{"uri":"file:///Users/someonetoignore/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rowan-0.15.11/src/api.rs","range":{"start":{"line":15,"character":11},"end":{"line":15,"character":21}}}},{"value":"<"},{"value":"RustLanguage","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/syntax/src/syntax_node.rs","range":{"start":{"line":15,"character":9},"end":{"line":15,"character":21}}}},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":463,"character":33},"label":[{"value":"hints:","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/ide/src/inlay_hints.rs","range":{"start":{"line":480,"character":4},"end":{"line":480,"character":9}}}}],"kind":2,"paddingLeft":false,"paddingRight":true,"data":{"file_id":0}},{"position":{"line":465,"character":22},"label":[{"value":": "},{"value":"TextRange","location":{"uri":"file:///Users/someonetoignore/.cargo/registry/src/index.crates.io-6f17d22bba15001f/text-size-1.1.0/src/range.rs","range":{"start":{"line":14,"character":11},"end":{"line":14,"character":20}}}},{"value":""}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":467,"character":35},"label":[{"value":": "},{"value":"SyntaxNode","location":{"uri":"file:///Users/someonetoignore/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rowan-0.15.11/src/api.rs","range":{"start":{"line":15,"character":11},"end":{"line":15,"character":21}}}},{"value":"<"},{"value":"RustLanguage","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/syntax/src/syntax_node.rs","range":{"start":{"line":15,"character":9},"end":{"line":15,"character":21}}}},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":469,"character":92},"label":[{"value":"impl "},{"value":"Iterator","location":{"uri":"file:///Users/someonetoignore/.rustup/toolchains/stable-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/traits/iterator.rs","range":{"start":{"line":72,"character":10},"end":{"line":72,"character":18}}}},{"value":"<"},{"value":"Item","location":{"uri":"file:///Users/someonetoignore/.rustup/toolchains/stable-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/traits/iterator.rs","range":{"start":{"line":76,"character":9},"end":{"line":76,"character":13}}}},{"value":" = "},{"value":"SyntaxNode","location":{"uri":"file:///Users/someonetoignore/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rowan-0.15.11/src/api.rs","range":{"start":{"line":15,"character":11},"end":{"line":15,"character":21}}}},{"value":"<"},{"value":"RustLanguage","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/syntax/src/syntax_node.rs","range":{"start":{"line":15,"character":9},"end":{"line":15,"character":21}}}},{"value":">>"}],"kind":1,"paddingLeft":true,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":468,"character":34},"label":[{"value":"impl "},{"value":"Iterator","location":{"uri":"file:///Users/someonetoignore/.rustup/toolchains/stable-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/traits/iterator.rs","range":{"start":{"line":72,"character":10},"end":{"line":72,"character":18}}}},{"value":"<"},{"value":"Item","location":{"uri":"file:///Users/someonetoignore/.rustup/toolchains/stable-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/traits/iterator.rs","range":{"start":{"line":76,"character":9},"end":{"line":76,"character":13}}}},{"value":" = "},{"value":"SyntaxNode","location":{"uri":"file:///Users/someonetoignore/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rowan-0.15.11/src/api.rs","range":{"start":{"line":15,"character":11},"end":{"line":15,"character":21}}}},{"value":"<"},{"value":"RustLanguage","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/syntax/src/syntax_node.rs","range":{"start":{"line":15,"character":9},"end":{"line":15,"character":21}}}},{"value":">>"},{"value":""}],"kind":1,"paddingLeft":true,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":467,"character":41},"label":[{"value":""},{"value":"SyntaxNode","location":{"uri":"file:///Users/someonetoignore/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rowan-0.15.11/src/api.rs","range":{"start":{"line":15,"character":11},"end":{"line":15,"character":21}}}},{"value":"<"},{"value":"RustLanguage","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/syntax/src/syntax_node.rs","range":{"start":{"line":15,"character":9},"end":{"line":15,"character":21}}}},{"value":">"}],"kind":1,"paddingLeft":true,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":469,"character":40},"label":" -> bool","kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":469,"character":39},"label":[{"value":": &"},{"value":"SyntaxNode","location":{"uri":"file:///Users/someonetoignore/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rowan-0.15.11/src/api.rs","range":{"start":{"line":15,"character":11},"end":{"line":15,"character":21}}}},{"value":"<"},{"value":"RustLanguage","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/syntax/src/syntax_node.rs","range":{"start":{"line":15,"character":9},"end":{"line":15,"character":21}}}},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}}]}
```

</details>

for the visible editor range alone, pretty much repeated on every consequent edit.

With this patch and all inlay hint resolve capabilities enabled, for the same example I observe quite a footprint reduction:

<details>
  <summary>unresolved json, 4142 characters</summary>

```json
{"jsonrpc":"2.0","id":49,"result":[{"position":{"line":477,"character":1},"label":[{"value":"fn inlay_hints"}],"paddingLeft":true,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":451,"character":10},"label":[{"value":": "},{"value":"ProfileSpan"},{"value":""}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":451,"character":27},"label":[{"value":"label:"}],"kind":2,"paddingLeft":false,"paddingRight":true,"data":{"file_id":0}},{"position":{"line":452,"character":12},"label":[{"value":": "},{"value":"Semantics"},{"value":"<'_, "},{"value":"RootDatabase"},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":453,"character":12},"label":[{"value":": "},{"value":"SourceFile"},{"value":""}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":454,"character":12},"label":[{"value":": &"},{"value":"SyntaxNode"},{"value":"<"},{"value":"RustLanguage"},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":456,"character":12},"label":": i32","kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":458,"character":15},"label":[{"value":": "},{"value":"Vec"},{"value":"<"},{"value":"InlayHint"},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":460,"character":21},"label":[{"value":": "},{"value":"SemanticsScope"},{"value":"<'_>"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":460,"character":36},"label":[{"value":"node:"}],"kind":2,"paddingLeft":false,"paddingRight":true,"data":{"file_id":0}},{"position":{"line":461,"character":23},"label":[{"value":": "},{"value":"FamousDefs"},{"value":"<'_, '_>"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":463,"character":17},"label":[{"value":": impl FnMut("},{"value":"SyntaxNode"},{"value":"<"},{"value":"RustLanguage"},{"value":">)"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":463,"character":25},"label":[{"value":": "},{"value":"SyntaxNode"},{"value":"<"},{"value":"RustLanguage"},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":463,"character":33},"label":[{"value":"hints:"}],"kind":2,"paddingLeft":false,"paddingRight":true,"data":{"file_id":0}},{"position":{"line":465,"character":22},"label":[{"value":": "},{"value":"TextRange"},{"value":""}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":467,"character":35},"label":[{"value":": "},{"value":"SyntaxNode"},{"value":"<"},{"value":"RustLanguage"},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":469,"character":92},"label":[{"value":"impl "},{"value":"Iterator"},{"value":"<"},{"value":"Item"},{"value":" = "},{"value":"SyntaxNode"},{"value":"<"},{"value":"RustLanguage"},{"value":">>"}],"kind":1,"paddingLeft":true,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":468,"character":34},"label":[{"value":"impl "},{"value":"Iterator"},{"value":"<"},{"value":"Item"},{"value":" = "},{"value":"SyntaxNode"},{"value":"<"},{"value":"RustLanguage"},{"value":">>"},{"value":""}],"kind":1,"paddingLeft":true,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":467,"character":41},"label":[{"value":""},{"value":"SyntaxNode"},{"value":"<"},{"value":"RustLanguage"},{"value":">"}],"kind":1,"paddingLeft":true,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":469,"character":40},"label":" -> bool","kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":469,"character":39},"label":[{"value":": &"},{"value":"SyntaxNode"},{"value":"<"},{"value":"RustLanguage"},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}}]}
```

</details>

with all unresolved parts needing only for navigation, hover or applying the hint edit — dynamic parts that are made after mouse hover or similar events, that resolve the hint data.

crates/ide/src/inlay_hints.rs

@@ -52,6 +52,28 @@ pub struct InlayHintsConfig {
     pub closure_style: ClosureStyle,
     pub max_length: Option<usize>,
     pub closing_brace_hints_min_lines: Option<usize>,
+    pub fields_to_resolve: InlayFieldsToResolve,
+}
+
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+pub struct InlayFieldsToResolve {
+    pub resolve_text_edits: bool,
+    pub resolve_hint_tooltip: bool,
+    pub resolve_label_tooltip: bool,
+    pub resolve_label_location: bool,
+    pub resolve_label_command: bool,
+}
+
+impl InlayFieldsToResolve {
+    pub const fn empty() -> Self {
+        Self {
+            resolve_text_edits: false,
+            resolve_hint_tooltip: false,
+            resolve_label_tooltip: false,
+            resolve_label_location: false,
+            resolve_label_command: false,
+        }
+    }
 }
 
 #[derive(Clone, Debug, PartialEq, Eq)]
@@ -123,11 +145,13 @@ pub struct InlayHint {
     pub label: InlayHintLabel,
     /// Text edit to apply when "accepting" this inlay hint.
     pub text_edit: Option<TextEdit>,
+    pub needs_resolve: bool,
 }
 
 impl InlayHint {
     fn closing_paren_after(kind: InlayKind, range: TextRange) -> InlayHint {
         InlayHint {
+            needs_resolve: false,
             range,
             kind,
             label: InlayHintLabel::from(")"),
@@ -139,6 +163,7 @@ impl InlayHint {
     }
     fn opening_paren_before(kind: InlayKind, range: TextRange) -> InlayHint {
         InlayHint {
+            needs_resolve: false,
             range,
             kind,
             label: InlayHintLabel::from("("),
@@ -196,6 +221,10 @@ impl InlayHintLabel {
             }),
         }
     }
+
+    pub fn needs_resolve(&self) -> bool {
+        self.parts.iter().any(|part| part.linked_location.is_some() || part.tooltip.is_some())
+    }
 }
 
 impl From<String> for InlayHintLabel {
@@ -529,6 +558,7 @@ fn closure_has_block_body(closure: &ast::ClosureExpr) -> bool {
 
 #[cfg(test)]
 mod tests {
+
     use expect_test::Expect;
     use hir::ClosureStyle;
     use itertools::Itertools;
@@ -538,7 +568,7 @@ mod tests {
     use crate::DiscriminantHints;
     use crate::{fixture, inlay_hints::InlayHintsConfig, LifetimeElisionHints};
 
-    use super::ClosureReturnTypeHints;
+    use super::{ClosureReturnTypeHints, InlayFieldsToResolve};
 
     pub(super) const DISABLED_CONFIG: InlayHintsConfig = InlayHintsConfig {
         discriminant_hints: DiscriminantHints::Never,
@@ -559,6 +589,7 @@ mod tests {
         param_names_for_lifetime_elision_hints: false,
         max_length: None,
         closing_brace_hints_min_lines: None,
+        fields_to_resolve: InlayFieldsToResolve::empty(),
     };
     pub(super) const TEST_CONFIG: InlayHintsConfig = InlayHintsConfig {
         type_hints: true,

crates/ide/src/inlay_hints/adjustment.rs

@@ -137,21 +137,23 @@ pub(super) fn hints(
             }
             _ => continue,
         };
+        let label = InlayHintLabel::simple(
+            if postfix { format!(".{}", text.trim_end()) } else { text.to_owned() },
+            Some(InlayTooltip::Markdown(format!(
+                "`{}` → `{}` ({coercion} coercion)",
+                source.display(sema.db),
+                target.display(sema.db),
+            ))),
+            None,
+        );
         acc.push(InlayHint {
+            needs_resolve: label.needs_resolve(),
             range: expr.syntax().text_range(),
             pad_left: false,
             pad_right: false,
             position: if postfix { InlayHintPosition::After } else { InlayHintPosition::Before },
             kind: InlayKind::Adjustment,
-            label: InlayHintLabel::simple(
-                if postfix { format!(".{}", text.trim_end()) } else { text.to_owned() },
-                Some(InlayTooltip::Markdown(format!(
-                    "`{}` → `{}` ({coercion} coercion)",
-                    source.display(sema.db),
-                    target.display(sema.db),
-                ))),
-                None,
-            ),
+            label,
             text_edit: None,
         });
     }

crates/ide/src/inlay_hints/bind_pat.rs

@@ -99,6 +99,7 @@ pub(super) fn hints(
         None => pat.syntax().text_range(),
     };
     acc.push(InlayHint {
+        needs_resolve: label.needs_resolve() || text_edit.is_some(),
         range: match type_ascriptable {
             Some(Some(t)) => text_range.cover(t.text_range()),
             _ => text_range,

crates/ide/src/inlay_hints/binding_mode.rs

@@ -50,9 +50,10 @@ pub(super) fn hints(
             _ => return,
         };
         acc.push(InlayHint {
+            needs_resolve: false,
             range,
             kind: InlayKind::BindingMode,
-            label: r.to_string().into(),
+            label: r.into(),
             text_edit: None,
             position: InlayHintPosition::Before,
             pad_left: false,
@@ -68,9 +69,10 @@ pub(super) fn hints(
                 hir::BindingMode::Ref(Mutability::Shared) => "ref",
             };
             acc.push(InlayHint {
+                needs_resolve: false,
                 range: pat.syntax().text_range(),
                 kind: InlayKind::BindingMode,
-                label: bm.to_string().into(),
+                label: bm.into(),
                 text_edit: None,
                 position: InlayHintPosition::Before,
                 pad_left: false,

crates/ide/src/inlay_hints/chaining.rs

@@ -57,10 +57,12 @@ pub(super) fn hints(
                     }
                 }
             }
+            let label = label_of_ty(famous_defs, config, &ty)?;
             acc.push(InlayHint {
+                needs_resolve: label.needs_resolve(),
                 range: expr.syntax().text_range(),
                 kind: InlayKind::Chaining,
-                label: label_of_ty(famous_defs, config, &ty)?,
+                label,
                 text_edit: None,
                 position: InlayHintPosition::After,
                 pad_left: true,
@@ -128,6 +130,7 @@ fn main() {
                             "",
                         ],
                         text_edit: None,
+                        needs_resolve: true,
                     },
                     InlayHint {
                         range: 147..154,
@@ -152,6 +155,7 @@ fn main() {
                             "",
                         ],
                         text_edit: None,
+                        needs_resolve: true,
                     },
                 ]
             "#]],
@@ -221,6 +225,7 @@ fn main() {
                             "",
                         ],
                         text_edit: None,
+                        needs_resolve: true,
                     },
                     InlayHint {
                         range: 143..179,
@@ -245,6 +250,7 @@ fn main() {
                             "",
                         ],
                         text_edit: None,
+                        needs_resolve: true,
                     },
                 ]
             "#]],
@@ -298,6 +304,7 @@ fn main() {
                             "",
                         ],
                         text_edit: None,
+                        needs_resolve: true,
                     },
                     InlayHint {
                         range: 143..179,
@@ -322,6 +329,7 @@ fn main() {
                             "",
                         ],
                         text_edit: None,
+                        needs_resolve: true,
                     },
                 ]
             "#]],
@@ -389,6 +397,7 @@ fn main() {
                             "<i32, bool>>",
                         ],
                         text_edit: None,
+                        needs_resolve: true,
                     },
                     InlayHint {
                         range: 246..265,
@@ -426,6 +435,7 @@ fn main() {
                             "<i32, bool>>",
                         ],
                         text_edit: None,
+                        needs_resolve: true,
                     },
                 ]
             "#]],
@@ -495,6 +505,7 @@ fn main() {
                             " = ()>",
                         ],
                         text_edit: None,
+                        needs_resolve: true,
                     },
                     InlayHint {
                         range: 174..224,
@@ -532,6 +543,7 @@ fn main() {
                             " = ()>",
                         ],
                         text_edit: None,
+                        needs_resolve: true,
                     },
                     InlayHint {
                         range: 174..206,
@@ -569,6 +581,7 @@ fn main() {
                             " = ()>",
                         ],
                         text_edit: None,
+                        needs_resolve: true,
                     },
                     InlayHint {
                         range: 174..189,
@@ -593,6 +606,7 @@ fn main() {
                             "",
                         ],
                         text_edit: None,
+                        needs_resolve: true,
                     },
                 ]
             "#]],
@@ -655,6 +669,7 @@ fn main() {
                                 ],
                             },
                         ),
+                        needs_resolve: true,
                     },
                     InlayHint {
                         range: 145..185,
@@ -679,6 +694,7 @@ fn main() {
                             "",
                         ],
                         text_edit: None,
+                        needs_resolve: true,
                     },
                     InlayHint {
                         range: 145..168,
@@ -703,6 +719,7 @@ fn main() {
                             "",
                         ],
                         text_edit: None,
+                        needs_resolve: true,
                     },
                     InlayHint {
                         range: 222..228,
@@ -725,6 +742,7 @@ fn main() {
                             },
                         ],
                         text_edit: None,
+                        needs_resolve: true,
                     },
                 ]
             "#]],

crates/ide/src/inlay_hints/closing_brace.rs

@@ -109,6 +109,7 @@ pub(super) fn hints(
 
     let linked_location = name_range.map(|range| FileRange { file_id, range });
     acc.push(InlayHint {
+        needs_resolve: linked_location.is_some(),
         range: closing_token.text_range(),
         kind: InlayKind::ClosingBrace,
         label: InlayHintLabel::simple(label, None, linked_location),

crates/ide/src/inlay_hints/closure_captures.rs

@@ -31,9 +31,10 @@ pub(super) fn hints(
             let range = closure.syntax().first_token()?.prev_token()?.text_range();
             let range = TextRange::new(range.end() - TextSize::from(1), range.end());
             acc.push(InlayHint {
+                needs_resolve: false,
                 range,
                 kind: InlayKind::ClosureCapture,
-                label: InlayHintLabel::simple("move", None, None),
+                label: InlayHintLabel::from("move"),
                 text_edit: None,
                 position: InlayHintPosition::After,
                 pad_left: false,
@@ -43,6 +44,7 @@ pub(super) fn hints(
         }
     };
     acc.push(InlayHint {
+        needs_resolve: false,
         range: move_kw_range,
         kind: InlayKind::ClosureCapture,
         label: InlayHintLabel::from("("),
@@ -59,23 +61,25 @@ pub(super) fn hints(
         // force cache the source file, otherwise sema lookup will potentially panic
         _ = sema.parse_or_expand(source.file());
 
+        let label = InlayHintLabel::simple(
+            format!(
+                "{}{}",
+                match capture.kind() {
+                    hir::CaptureKind::SharedRef => "&",
+                    hir::CaptureKind::UniqueSharedRef => "&unique ",
+                    hir::CaptureKind::MutableRef => "&mut ",
+                    hir::CaptureKind::Move => "",
+                },
+                capture.display_place(sema.db)
+            ),
+            None,
+            source.name().and_then(|name| name.syntax().original_file_range_opt(sema.db)),
+        );
         acc.push(InlayHint {
+            needs_resolve: label.needs_resolve(),
             range: move_kw_range,
             kind: InlayKind::ClosureCapture,
-            label: InlayHintLabel::simple(
-                format!(
-                    "{}{}",
-                    match capture.kind() {
-                        hir::CaptureKind::SharedRef => "&",
-                        hir::CaptureKind::UniqueSharedRef => "&unique ",
-                        hir::CaptureKind::MutableRef => "&mut ",
-                        hir::CaptureKind::Move => "",
-                    },
-                    capture.display_place(sema.db)
-                ),
-                None,
-                source.name().and_then(|name| name.syntax().original_file_range_opt(sema.db)),
-            ),
+            label,
             text_edit: None,
             position: InlayHintPosition::After,
             pad_left: false,
@@ -84,9 +88,10 @@ pub(super) fn hints(
 
         if idx != last {
             acc.push(InlayHint {
+                needs_resolve: false,
                 range: move_kw_range,
                 kind: InlayKind::ClosureCapture,
-                label: InlayHintLabel::simple(", ", None, None),
+                label: InlayHintLabel::from(", "),
                 text_edit: None,
                 position: InlayHintPosition::After,
                 pad_left: false,
@@ -95,6 +100,7 @@ pub(super) fn hints(
         }
     }
     acc.push(InlayHint {
+        needs_resolve: false,
         range: move_kw_range,
         kind: InlayKind::ClosureCapture,
         label: InlayHintLabel::from(")"),

crates/ide/src/inlay_hints/closure_ret.rs

@@ -64,6 +64,7 @@ pub(super) fn hints(
     };
 
     acc.push(InlayHint {
+        needs_resolve: label.needs_resolve() || text_edit.is_some(),
         range: param_list.syntax().text_range(),
         kind: InlayKind::Type,
         label,

crates/ide/src/inlay_hints/discriminant.rs

@@ -79,6 +79,7 @@ fn variant_hints(
         None,
     );
     acc.push(InlayHint {
+        needs_resolve: label.needs_resolve(),
         range: match eq_token {
             Some(t) => range.cover(t.text_range()),
             _ => range,