llvm-project

d3b75c47 - [clang] Make `-fvisibility={}` and `-ftype-visibility={}` benign options. (#71985)

[clang] Make `-fvisibility={}` and `-ftype-visibility={}` benign options. (#71985) Both options do not affect the AST content that is serialized into the PCM. This commit includes the following changes: 1.) Mark `-fvisibility={}` and `-ftype-visibility={}` as benign options.That means they are no longer considered part of the module hash, which can reduce the number of module variants. 2.) Add a test to verify the generated LLVM IR is not affected by the default visibiliy mode in the module. 3.) Add a test to clang-scan-deps to ensure only one module is build, even if the above mentioned options are used. This fixes rdar://118246054.