[clang-tidy] Ignore macros in make-unique check.

Summary:
The check doesn't fully support smart-ptr usages inside macros, which
may cause incorrect fixes, or even crashes, ignore them for now.

Reviewers: alexfh

Reviewed By: alexfh

Subscribers: JDevlieghere, xazax.hun, cfe-commits

Differential Revision: https://reviews.llvm.org/D36264

llvm-svn: 310050