[Diffusion] rL231029: Remove shell requirements from tests that use 'cd'

[NAKAMURA Takumi]

/cfe/trunk/test/PCH/headersearch.cpp:3 Would it pass for you? See also; http://bb.pgr.jp/builders/ninja-clang-i686-msc18-R/builds/228/steps/test-clang/logs/Clang%20%3A%3A%20PCH__headersearch.cpp

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  rnk (Author)

http://reviews.llvm.org/rL231029

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