[zorg] The debuginfo tests do use the correct dsymutil

[Chris Matthews via llvm-commits]

Looks good.  Can you update the tests as well? Thanks

> On Feb 15, 2016, at 3:24 PM, Marc Schifer <mschifer at apple.com> wrote:
> 
> Chris,
> Please Review. 
> 
> The compiler builds llvm-dsymutil and the debuginfo tests can not find it when they are executed. Instead they default to the system dsymutil which can cause issues with the test.
> 
> This patch creates sum links from llvm-dsymutil to dsymutil in the builds bin directories which will allow the clang driver to find the just built one at run time.
> 
> <r23393906_dsymutil_build_py.patch>