[cfe-commits] PATCH: Better support for -g options in Clang driver

[Alexey Samsonov]

Hi, cfe-commits!

This patch improves support for different -g options:
1) Flags -ggdb{0,2,3}, -gdwarf-{2,3,4} are now supported and translated to
"-g" (except -ggdb0).
2) Flag -gtoggle is supported.
3) Flags -g[no-]record-gcc-switches and -g[no-]strict-dwarf are supported
and ignored.
4) Flags for alternate debug formats (-gcoff*, -gxcoff*, -gstabs*, -gvms*)
are marked as unsupported and produce an error.

Codereview: http://codereview.appspot.com/6250082/

-- 
Alexey Samsonov, MSK
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