fix canonicalization links

Author: mark-i-m

Diff for: src/librustc_infer/infer/canonical/canonicalizer.rs

@@ -3,7 +3,7 @@
 //! For an overview of what canonicalization is and how it fits into
 //! rustc, check out the [chapter in the rustc dev guide][c].
 //!
-//! [c]: https://rustc-dev-guide.rust-lang.org/traits/canonicalization.html
+//! [c]: https://rust-lang.github.io/chalk/book/canonical_queries/canonicalization.html
 
 use crate::infer::canonical::{
     Canonical, CanonicalTyVarKind, CanonicalVarInfo, CanonicalVarKind, Canonicalized,
@@ -35,7 +35,7 @@ impl<'cx, 'tcx> InferCtxt<'cx, 'tcx> {
     /// To get a good understanding of what is happening here, check
     /// out the [chapter in the rustc dev guide][c].
     ///
-    /// [c]: https://rustc-dev-guide.rust-lang.org/traits/canonicalization.html#canonicalizing-the-query
+    /// [c]: https://rust-lang.github.io/chalk/book/canonical_queries/canonicalization.html#canonicalizing-the-query
     pub fn canonicalize_query<V>(
         &self,
         value: &V,
@@ -79,7 +79,7 @@ impl<'cx, 'tcx> InferCtxt<'cx, 'tcx> {
     /// To get a good understanding of what is happening here, check
     /// out the [chapter in the rustc dev guide][c].
     ///
-    /// [c]: https://rustc-dev-guide.rust-lang.org/traits/canonicalization.html#canonicalizing-the-query-result
+    /// [c]: https://rust-lang.github.io/chalk/book/canonical_queries/canonicalization.html#canonicalizing-the-query-result
     pub fn canonicalize_response<V>(&self, value: &V) -> Canonicalized<'tcx, V>
     where
         V: TypeFoldable<'tcx>,

Diff for: src/librustc_infer/infer/canonical/mod.rs

@@ -19,7 +19,7 @@
 //! For a more detailed look at what is happening here, check
 //! out the [chapter in the rustc dev guide][c].
 //!
-//! [c]: https://rustc-dev-guide.rust-lang.org/traits/canonicalization.html
+//! [c]: https://rust-lang.github.io/chalk/book/canonical_queries/canonicalization.html
 
 use crate::infer::{ConstVariableOrigin, ConstVariableOriginKind};
 use crate::infer::{InferCtxt, RegionVariableOrigin, TypeVariableOrigin, TypeVariableOriginKind};

Diff for: src/librustc_infer/infer/canonical/query_response.rs

@@ -5,7 +5,7 @@
 //! For an overview of what canonicaliation is and how it fits into
 //! rustc, check out the [chapter in the rustc dev guide][c].
 //!
-//! [c]: https://rustc-dev-guide.rust-lang.org/traits/canonicalization.html
+//! [c]: https://rust-lang.github.io/chalk/book/canonical_queries/canonicalization.html
 
 use crate::infer::canonical::substitute::{substitute_value, CanonicalExt};
 use crate::infer::canonical::{
@@ -154,7 +154,7 @@ impl<'cx, 'tcx> InferCtxt<'cx, 'tcx> {
     /// To get a good understanding of what is happening here, check
     /// out the [chapter in the rustc dev guide][c].
     ///
-    /// [c]: https://rustc-dev-guide.rust-lang.org/traits/canonicalization.html#processing-the-canonicalized-query-result
+    /// [c]: https://rust-lang.github.io/chalk/book/canonical_queries/canonicalization.html#processing-the-canonicalized-query-result
     pub fn instantiate_query_response_and_region_obligations<R>(
         &self,
         cause: &ObligationCause<'tcx>,

Diff for: src/librustc_infer/infer/canonical/substitute.rs

@@ -4,7 +4,7 @@
 //! For an overview of what canonicalization is and how it fits into
 //! rustc, check out the [chapter in the rustc dev guide][c].
 //!
-//! [c]: https://rustc-dev-guide.rust-lang.org/traits/canonicalization.html
+//! [c]: https://rust-lang.github.io/chalk/book/canonical_queries/canonicalization.html
 
 use crate::infer::canonical::{Canonical, CanonicalVarValues};
 use rustc_middle::ty::fold::TypeFoldable;

Diff for: src/librustc_middle/infer/canonical.rs

@@ -19,7 +19,7 @@
 //! For a more detailed look at what is happening here, check
 //! out the [chapter in the rustc dev guide][c].
 //!
-//! [c]: https://rustc-dev-guide.rust-lang.org/traits/canonicalization.html
+//! [c]: https://rust-lang.github.io/chalk/book/canonical_queries/canonicalization.html
 
 use crate::infer::MemberConstraint;
 use crate::ty::subst::GenericArg;

Diff for: src/librustc_trait_selection/traits/query/type_op/mod.rs

@@ -44,7 +44,7 @@ pub trait TypeOp<'tcx>: Sized + fmt::Debug {
 /// first canonicalize the key and then invoke the query on the tcx,
 /// which produces the resulting query region constraints.
 ///
-/// [c]: https://rustc-dev-guide.rust-lang.org/traits/canonicalization.html
+/// [c]: https://rust-lang.github.io/chalk/book/canonical_queries/canonicalization.html
 pub trait QueryTypeOp<'tcx>: fmt::Debug + Sized + TypeFoldable<'tcx> + 'tcx {
     type QueryResponse: TypeFoldable<'tcx>;