clang-format: Fix incorrect pointer detection in lambdas in constructor

initializers.

Before:
  Constructor() : member([](A *a, B * b) {}) {}

After:
  Constructor() : member([](A *a, B *b) {}) {}

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@259353 91177308-0d34-0410-b5e6-96231b3b80d8