Commits
Mark Lacey committed b3b6b74bd3a
Fix crash during type checking when adding members to an extension. If the extension ended up with ErrorType, we could crash while we continue trying to process its body adding members. Just bail out in this case. rdar://problem/27671033 (code cherry picked from commit c9ec7e398b4a2fc5f44b9d40fad4c29fd756b29d) (test cherry picked from commit 107d602940665903280271905ef9f9c7abf6a9e2)