Parse typeof-specifier the same way as sizeof/alignof are parsed.

-Makes typeof consistent with sizeof/alignof
-Fixes a bug when '>' is in a typeof expression, inside a template type param:
  A<typeof(x>1)> a;

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72255 91177308-0d34-0410-b5e6-96231b3b80d8
5 files changed