[clang] [CUDA][HIP] add option -gpuinc (PR #140106)

[Artem Belevich via cfe-commits]

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@@ -5734,6 +5734,9 @@ def nobuiltininc : Flag<["-"], "nobuiltininc">,
 def nogpuinc : Flag<["-"], "nogpuinc">, Group<IncludePath_Group>,
   HelpText<"Do not add include paths for CUDA/HIP and"
   " do not include the default CUDA/HIP wrapper headers">;
+def gpuinc : Flag<["-"], "gpuinc">, Group<IncludePath_Group>,
+  HelpText<"Add include paths for CUDA/HIP and"
+  " include the default CUDA/HIP wrapper headers">;
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Artem-B wrote:

Can we consolidate them into s single boolean flag?

https://github.com/llvm/llvm-project/pull/140106