[PATCH] [ARM] Fix ARM triple parsing.

[Gabor Ballabas]

Hi Renato,

Currently I see similar test cases in these Clang tests:
test/Driver/hexagon-toolchain.c
test/Driver/mips-abi.c

I plan to write similar Clang test cases checking for this error message
"error: unknown target triple 'armvelocipede--linux-gnueabi'"
when the ARM target triple is invalid, for example if we call clang like this:
"clang -target armvelocipede--linux-gnueabi"
and so forth with armebv, thumbv and thumbebv.

By the way, how does one submit patches that modify both clang and llvm?

Thanks,
Gabor

http://reviews.llvm.org/D6058