[PATCH] [libcxx] Allow the use of ccache when running the test suite.

[Dan Albert]

Couldn't you just set cxx_under_test to 'ccache clang++' and be done with it? Using ccache in build bots where the compiler goes through regular updates feels fragile to me...

As for splitting into separate build/link commands, that's how I have to do it in Android anyway, so that part is good with me :)


http://reviews.llvm.org/D6647

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