clang-format: [JS] recognize more type locations.

Summary: Includes parenthesized type expressions and type aliases.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: http://reviews.llvm.org/D21597

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@273603 91177308-0d34-0410-b5e6-96231b3b80d8