Resolve `macro-error` diagnostics on asm & llvm_asm

We currently stub these out as returning unit.

This fixes spurious RA diagnostics in the following:
```rust
unsafe { asm!(""); llvm_asm!(""); }
```

1 files changed, 2 insertions, 0 deletions

diff --git a/crates/hir_expand/src/name.rs b/crates/hir_expand/src/name.rs
index 6ec5ca0a9..69d8e6803 100644
--- a/crates/hir_expand/src/name.rs
+++ b/crates/hir_expand/src/name.rs
@@ -199,6 +199,8 @@ pub mod known {
         format_args_nl,
         env,
         option_env,
+        llvm_asm,
+        asm,
         // Builtin derives
         Copy,
         Clone,