fixup! Update docs related to const-eval

src/const-eval.md

@@ -24,17 +24,21 @@ Constant evaluation can be done by calling the `const_eval_*` queries of `TyCtxt
 
 The `const_eval_*` queries use a [`ParamEnv`](./param_env.html) of environment
 in which the constant is evaluated (e.g. the function within which the constant is used)
-and a `GlobalId`. The `GlobalId` is made up of an `Instance` referring to a constant
+and a [`GlobalId`]. The `GlobalId` is made up of an `Instance` referring to a constant
 or static or of an `Instance` of a function and an index into the function's `Promoted` table.
 
 Constant evaluation returns a [`ConstEvalResult`] with either the error, or the simplest
 representation of the constant. "simplest" meaning if it is representable as an
-integer or fat pointer, it will directly yield the value (via `ConstValue::Scalar` or
-`ConstValue::Slice`), instead of referring to the [`miri`](./miri.html) virtual
-memory allocation (via `ConstValue::ByRef`). This means that the `const_eval_*`
+integer or fat pointer, it will directly yield the value (via [`ConstValue::Scalar`]
+or [`ConstValue::Slice`]), instead of referring to the [`miri`](./miri.html) virtual
+memory allocation (via [`ConstValue::ByRef`]). This means that the `const_eval_*`
 functions cannot be used to create miri-pointers to the evaluated constant or
 static. If you need that, you need to directly work with the functions in
 [`src/librustc_mir/const_eval.rs`].
 
+[`GlobalId`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/mir/interpret/struct.GlobalId.html
+[`ConstValue::Scalar`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/mir/interpret/value/enum.ConstValue.html#variant.Scalar
+[`ConstValue::Slice`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/mir/interpret/value/enum.ConstValue.html#variant.Slice
+[`ConstValue::ByRef`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/mir/interpret/value/enum.ConstValue.html#variant.ByRef
 [`ConstEvalResult`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/mir/interpret/error/type.ConstEvalResult.html
 [`src/librustc_mir/const_eval.rs`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_mir/const_eval/index.html