Repared support for warnings -Wkeyword-macro and -Wreserved-id-macro.
The warning -Wkeyword-macro now is not issued in patterns that are used
in configuration scripts:
#define inline
also for 'const', 'extern' and 'static'. If macro repalcement is identical
to macro name, the warning also is not issued:
#define volatile volatile
And finally if macro replacement is also a keyword identical to the replaced
one but decorated with leading/trailing underscores:
#define inline __inline
#define inline __inline__
#define inline _inline // in MSVC compatibility mode
Warning -Wreserved-id-macro is off by default, it could help catching
things like:
#undef __cplusplus
llvm-svn: 224512
Serge Pavlov