[clang] [clang][modules] Print library module manifest path. (PR #76451)

[Chuanqi Xu via cfe-commits]

================
@@ -5280,6 +5280,9 @@ def print_resource_dir : Flag<["-", "--"], "print-resource-dir">,
 def print_search_dirs : Flag<["-", "--"], "print-search-dirs">,
   HelpText<"Print the paths used for finding libraries and programs">,
   Visibility<[ClangOption, CLOption]>;
+def print_library_module_manifest_path : Flag<["-", "--"], "print-library-module-manifest-path">,
----------------
ChuanqiXu9 wrote:

```suggestion
def print_std_module_manifest_path : Flag<["-", "--"], "print-std-module-manifest-path">,
```

https://github.com/llvm/llvm-project/pull/76451