Expand description

Type-checking for the rust-intrinsic and platform-intrinsic intrinsics that the compiler exposes.

Functions

Remember to add all intrinsics here, in compiler/rustc_codegen_llvm/src/intrinsic.rs, and in library/core/src/intrinsics.rs.
Type-check extern "platform-intrinsic" { ... } functions.
Returns the unsafety of the given intrinsic.