[clang] [clang-tools-extra] [llvm] [Clang] Fix : More Detailed "No expected directives found" (PR #78338)

[Shourya Goel via cfe-commits]

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@@ -179,7 +179,7 @@ def err_verify_invalid_no_diags : Error<
     "%select{expected|'expected-no-diagnostics'}0 directive cannot follow "
     "%select{'expected-no-diagnostics' directive|other expected directives}0">;
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Sh0g0-1758 wrote:

Thanks a lot for looking over it. 

I have made the required changes and added more tests for the same. Please take a look and suggest changes. 

https://github.com/llvm/llvm-project/pull/78338