[clang][tooling] Don't forget to link to clangToolingInclusions.
[clang][tooling] Don't forget to link to clangToolingInclusions.

Fixes build with shared libs, broken by rL333874.
Some buildbot converage is sorely missing.

git-svn-id: a34e9779ed74578ad5922b3306b3d80a0c825546@333891 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/clang-tools-extra,llvm-mirror/clang-tools-extra,llvm-mirror/clang-tools-extra,llvm-mirror/clang-tools-extra