tree b0f2fde4b606e4abc541e3b94fe187ee01cc4815
parent aff5661c33f3c3c4c43b4785a800d13c9fb347de
author Xi Ge <xi_ge@apple.com> 1529963064 -0700
committer Xi Ge <xi_ge@apple.com> 1529966779 -0700

migrator: avoid adding conversion functions when expression types change as well.

When inserting conversion functions around expressions, we should check
whether the type of the expression is a recognized name alias that is
known to be changed to raw-value representable type. We should avoid
inserting conversion functions in this case because doing so causes
build errors.

resolves: rdar://40463990