Rollup merge of rust-lang#125241 - Veykril:tool-rust-analyzer, r=davidtwco

Add `rust_analyzer` as a predefined tool

Given all the other rust-lang tools have it, I'd expect r-a to have it too. (we have a few ideas for using this rust-lang/rust-analyzer#11556).

Author: matthiaskrgr

Diff for: compiler/rustc_resolve/src/macros.rs

@@ -140,9 +140,9 @@ pub(crate) fn registered_tools(tcx: TyCtxt<'_>, (): ()) -> RegisteredTools {
             }
         }
     }
-    // We implicitly add `rustfmt`, `clippy`, `diagnostic` to known tools,
-    // but it's not an error to register them explicitly.
-    let predefined_tools = [sym::clippy, sym::rustfmt, sym::diagnostic, sym::miri];
+    // We implicitly add `rustfmt`, `clippy`, `diagnostic`, `miri` and `rust_analyzer` to known
+    // tools, but it's not an error to register them explicitly.
+    let predefined_tools = [sym::clippy, sym::rustfmt, sym::diagnostic, sym::miri, sym::rust_analyzer];
     registered_tools.extend(predefined_tools.iter().cloned().map(Ident::with_dummy_span));
     registered_tools
 }

Diff for: compiler/rustc_span/src/symbol.rs

@@ -1557,6 +1557,7 @@ symbols! {
         rust_2018_preview,
         rust_2021,
         rust_2024,
+        rust_analyzer,
         rust_begin_unwind,
         rust_cold_cc,
         rust_eh_catch_typeinfo,