Fix a crazy canonical-types bug because canonicalizing a
dependently-sized array type with a given expression might end up
returning a non-canonical type; see through that non-canonical type to
the underlying canonical type. Yes, I have a test case; no, I can't
reduce it to the point where it's worth checking in :(


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85633 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed