[cmake] Add clang-headers as a dependency of libclang and if we have to copy them
for the IDE case, also create a symlink inside the libclang.dylib directory.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178372 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed