Rollup merge of rust-lang#148395 - Kobzol:generalize-branch-references, r=marcoieni

Generalize branch references

It should be safe to merge this before the rename, and I'd like to do that, so we can test if beta/stable PRs work.

r? ``@marcoieni``

Author: matthiaskrgr

core/src/intrinsics/mod.rs

@@ -5,16 +5,16 @@
 //! intrinsics via stable wrapper functions. Use these instead.
 //!
 //! These are the imports making intrinsics available to Rust code. The actual implementations live in the compiler.
-//! Some of these intrinsics are lowered to MIR in <https://github.com/rust-lang/rust/blob/master/compiler/rustc_mir_transform/src/lower_intrinsics.rs>.
-//! The remaining intrinsics are implemented for the LLVM backend in <https://github.com/rust-lang/rust/blob/master/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs>
-//! and <https://github.com/rust-lang/rust/blob/master/compiler/rustc_codegen_llvm/src/intrinsic.rs>,
-//! and for const evaluation in <https://github.com/rust-lang/rust/blob/master/compiler/rustc_const_eval/src/interpret/intrinsics.rs>.
+//! Some of these intrinsics are lowered to MIR in <https://github.com/rust-lang/rust/blob/HEAD/compiler/rustc_mir_transform/src/lower_intrinsics.rs>.
+//! The remaining intrinsics are implemented for the LLVM backend in <https://github.com/rust-lang/rust/blob/HEAD/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs>
+//! and <https://github.com/rust-lang/rust/blob/HEAD/compiler/rustc_codegen_llvm/src/intrinsic.rs>,
+//! and for const evaluation in <https://github.com/rust-lang/rust/blob/HEAD/compiler/rustc_const_eval/src/interpret/intrinsics.rs>.
 //!
 //! # Const intrinsics
 //!
 //! In order to make an intrinsic unstable usable at compile-time, copy the implementation from
 //! <https://github.com/rust-lang/miri/blob/master/src/intrinsics> to
-//! <https://github.com/rust-lang/rust/blob/master/compiler/rustc_const_eval/src/interpret/intrinsics.rs>
+//! <https://github.com/rust-lang/rust/blob/HEAD/compiler/rustc_const_eval/src/interpret/intrinsics.rs>
 //! and make the intrinsic declaration below a `const fn`. This should be done in coordination with
 //! wg-const-eval.
 //!