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 :(
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: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@85633 91177308-0d34-0410-b5e6-96231b3b80d8

apple/swift-clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang