Rename an extension warning to ext_...


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@195095 91177308-0d34-0410-b5e6-96231b3b80d8
Adding subjects to calling convention attributes. No functional changes intended.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@195097 91177308-0d34-0410-b5e6-96231b3b80d8
Improving calling convention test coverage by adding tests for things not currently handled. Specifically: the diagnostics in SemaDeclAttr.cpp, and ensuring that calling convention attributes are applied to ObjC method declarations. No functional changes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@195098 91177308-0d34-0410-b5e6-96231b3b80d8
Giving this test a triple since it uses a calling convention attribute.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@195099 91177308-0d34-0410-b5e6-96231b3b80d8
[Mips] Do not adjust float-abi flags in case of MIPS16 mode. This code
should be isolated in the backend (r195123). From the frontend point
of view in case of "-mhard-float -mips16" combination of flags the float
ABI mode should remain unchanged.

The patch reviewed by Reed Kotler.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@195124 91177308-0d34-0410-b5e6-96231b3b80d8