Start switching clients over from CT.getCanonicalType() to Context.getCanonicalType(CT) for PR2189.

While I'm at it, clean up a bit of maxIntegerType.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49292 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed