[clang] [llvm] [KeyInstr] Fix verifier check (PR #149043)

[Stephen Tozer via llvm-commits]

================
@@ -7,6 +7,8 @@
 
 define dso_local void @f() !dbg !10 {
 entry:
+; include non-key location to check verifier is checking the whole function.
----------------
SLTozer wrote:

```suggestion
; Include non-key location to check verifier is checking the whole function.
```

https://github.com/llvm/llvm-project/pull/149043