[clang] [llvm] Add -funique-source-file-identifier flag. (PR #142901)

[Teresa Johnson via llvm-commits]

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@@ -4204,13 +4204,15 @@ def ftrigraphs : Flag<["-"], "ftrigraphs">, Group<f_Group>,
 def fno_trigraphs : Flag<["-"], "fno-trigraphs">, Group<f_Group>,
   HelpText<"Do not process trigraph sequences">,
   Visibility<[ClangOption, CC1Option]>;
-defm unique_source_file_names: BoolOption<"f", "unique-source-file-names",
-  CodeGenOpts<"UniqueSourceFileNames">, DefaultFalse,
-  PosFlag<SetTrue, [], [CC1Option], "Allow">,
-  NegFlag<SetFalse, [], [], "Do not allow">,
-  BothFlags<[], [ClangOption], " the compiler to assume that each translation unit has a unique "
-                               "source file name at link time">>,
-  Group<f_clang_Group>;
+def funique_source_file_names: Flag<["-"], "funique-source-file-names">, Group<f_Group>,
+  HelpText<"Allow the compiler to assume that each translation unit has a unique "                       
+           "source file identifier (see funique-source-file-identifier) at link time">;
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teresajohnson wrote:

nit: missing "-" in front of option name.

https://github.com/llvm/llvm-project/pull/142901