[BoundsSafety][NFC] Upstream BoundsSafetyBringupMissingChecks unit test changes

[delcypher]

This change modifies the test to pass so it is possible to pass the -fbounds-safety* arguments directly to CC1 (i.e. bypassing the driver) by modifying #if 1 to be #if 0.

rdar://143592184
(cherry picked from commit ca33eac)

[delcypher]

@swift-ci test llvm

[delcypher]

@swift-ci test

[delcypher]

Linux build failure is unrelated to my change.

ools/clang/lib/APINotes/CMakeFiles/obj.clangAPINotes.dir/APINotesYAMLCompiler.cpp.o.d -o tools/clang/lib/APINotes/CMakeFiles/obj.clangAPINotes.dir/APINotesYAMLCompiler.cpp.o -c /home/build-user/llvm-project/clang/lib/APINotes/APINotesYAMLCompiler.cpp
/home/build-user/llvm-project/clang/lib/APINotes/APINotesYAMLCompiler.cpp:218:31: error: declaration of 'std::optional<{anonymous}::BoundsSafety> {anonymous}::Param::BoundsSafety' changes meaning of 'BoundsSafety' [-fpermissive]
  218 |   std::optional<BoundsSafety> BoundsSafety;
      |                               ^~~~~~~~~~~~
/home/build-user/llvm-project/clang/lib/APINotes/APINotesYAMLCompiler.cpp:155:8: note: 'BoundsSafety' declared here as 'struct {anonymous}::BoundsSafety'
  155 | struct BoundsSafety {
      |        ^~~~~~~~~~~~

@hnrklssn Is this build failure related to your work?

[hnrklssn]

Linux build failure is unrelated to my change.

ools/clang/lib/APINotes/CMakeFiles/obj.clangAPINotes.dir/APINotesYAMLCompiler.cpp.o.d -o tools/clang/lib/APINotes/CMakeFiles/obj.clangAPINotes.dir/APINotesYAMLCompiler.cpp.o -c /home/build-user/llvm-project/clang/lib/APINotes/APINotesYAMLCompiler.cpp
/home/build-user/llvm-project/clang/lib/APINotes/APINotesYAMLCompiler.cpp:218:31: error: declaration of 'std::optional<{anonymous}::BoundsSafety> {anonymous}::Param::BoundsSafety' changes meaning of 'BoundsSafety' [-fpermissive]
  218 |   std::optional<BoundsSafety> BoundsSafety;
      |                               ^~~~~~~~~~~~
/home/build-user/llvm-project/clang/lib/APINotes/APINotesYAMLCompiler.cpp:155:8: note: 'BoundsSafety' declared here as 'struct {anonymous}::BoundsSafety'
  155 | struct BoundsSafety {
      |        ^~~~~~~~~~~~

@hnrklssn Is this build failure related to your work?

Yeah, I'm trying to revert but I'm having some CI issues preventing merging #9908