[clang] Make libBasic not depend on MC

Reduces numbers of files built for clang-format from 575 to 449.

Requires two small changes:

1. Don't use llvm::ExceptionHandling in LangOptions. This isn't
   even quite the right type since we don't use all of its values.
   Tweaks the changes made in:
   - https://reviews.llvm.org/D93215
   - https://reviews.llvm.org/D93216

2. Move section name validation code added (long ago) in commit 30ba67439 out
   of libBasic into Sema and base the check on the triple. This is a bit less
   OOP-y, but completely in line with what we do in many other places in Sema.

No behavior change.

Differential Revision: https://reviews.llvm.org/D101463

1 files changed, 2 insertions, 1 deletions

diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 36d2fe3..2578c8c 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -463,7 +463,8 @@ static bool FixupInvocation(CompilerInvocation &Invocation,
 
   CodeGenOpts.CodeModel = TargetOpts.CodeModel;
 
-  if (LangOpts.getExceptionHandling() != llvm::ExceptionHandling::None &&
+  if (LangOpts.getExceptionHandling() !=
+          LangOptions::ExceptionHandlingKind::None &&
       T.isWindowsMSVCEnvironment())
     Diags.Report(diag::err_fe_invalid_exception_model)
         << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str();