[Clang] Claim options which manipulate include paths

[MaskRay]

Summary

Claim options which disable include paths in case the pre-processor is not run.

This avoids warnings when, for example, all inputs are objects. Libtool sometimes builds libraries and binaries this way.

Here's an obviously exaggerated example:

clang++ -c test.cpp -o test.o
clang++ -shared test.o -nobuiltininc -nostdinc -nostdlibinc -nostdinc++ -nogpuinc -nohipwrapperinc -ibuiltininc -o testing
clang-16: warning: argument unused during compilation: '-nobuiltininc' [-Wunused-command-line-argument]
clang-16: warning: argument unused during compilation: '-nostdinc' [-Wunused-command-line-argument]
clang-16: warning: argument unused during compilation: '-nostdlibinc' [-Wunused-command-line-argument]
clang-16: warning: argument unused during compilation: '-nostdinc++' [-Wunused-command-line-argument]
clang-16: warning: argument unused during compilation: '-nogpuinc' [-Wunused-command-line-argument]
clang-16: warning: argument unused during compilation: '-nohipwrapperinc' [-Wunused-command-line-argument]
clang-16: warning: argument unused during compilation: '-ibuiltininc' [-Wunused-command-line-argument]

These cflags/cxxflags are very often inadvertently passed as part of the link-line, making the warnings annoying (and problematic with -Werror). Most other path-related options are consumed, making the above outliers. If it makes sense for options like -isystem to be consumed, imo it makes sense for options which control those options to be consumed as well.

I'm not familiar with this code, so I largely guessed as to where they should be added.

[MaskRay]

See D151944

[MaskRay]

Obsoleted by D151944

clang/lib/Driver/Driver.cpp

if (Claim)
     A->claim();
   return A;
 }
 
 DerivedArgList *Driver::TranslateInputArgs(const InputArgList &Args) const {
   const llvm::opt::OptTable &Opts = getOpts();
   DerivedArgList *DAL = new DerivedArgList(Args);
 
+  // Absorb options which disable include paths here in case the preprocessor
+  // is not run, for example when all inputs are objects.
+  Args.ClaimAllArgs(options::OPT_nobuiltininc);
+  Args.ClaimAllArgs(options::OPT_nostdinc);
+  Args.ClaimAllArgs(options::OPT_nostdlibinc);
+  Args.ClaimAllArgs(options::OPT_nostdincxx);
+  Args.ClaimAllArgs(options::OPT_nogpuinc);
+  Args.ClaimAllArgs(options::OPT_nohipwrapperinc);
+
+  // Also claim the override of -nobuiltininc here.
+  Args.ClaimAllArgs(options::OPT_ibuiltininc);
+
   bool HasNostdlib = Args.hasArg(options::OPT_nostdlib);
   bool HasNostdlibxx = Args.hasArg(options::OPT_nostdlibxx);
   bool HasNodefaultlib = Args.hasArg(options::OPT_nodefaultlibs);
   bool IgnoreUnused = false;
   for (Arg *A : Args) {
     if (IgnoreUnused)
       A->claim();