[clang-tidy] Speed up performance-unnecessary-value-param check

Moved slower matchers closer to the end. The total speed up on a large file I
was interested in is not huge, just about 10%, since the check seems to be doing
a lot in the check() method.

git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@303191 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed