[clang] [Clang][NFC] Introduce `--offloadlib` positive flag for `nogpulib` and alias to `--no-offloadlib` (PR #126567)

[Yaxun Liu via cfe-commits]

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@@ -5618,10 +5618,18 @@ def nogpuinc : Flag<["-"], "nogpuinc">, Group<IncludePath_Group>,
 def nohipwrapperinc : Flag<["-"], "nohipwrapperinc">, Group<IncludePath_Group>,
   HelpText<"Do not include the default HIP wrapper headers and include paths">;
 def : Flag<["-"], "nocudainc">, Alias<nogpuinc>;
-def nogpulib : Flag<["-"], "nogpulib">, MarshallingInfoFlag<LangOpts<"NoGPULib">>,
-  Visibility<[ClangOption, CC1Option, FlangOption, FC1Option]>,
-  HelpText<"Do not link device library for CUDA/HIP device compilation">;
-def : Flag<["-"], "nocudalib">, Alias<nogpulib>;
+def no_offloadlib
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yxsamliu wrote:

can we use defm offloadlib: BoolFOption to make it simpler?

https://github.com/llvm/llvm-project/pull/126567