#9071: Panic with -XDeriveFunctor when deriving from a non-Functor in a separate
module
-------------------------------------------------+-------------------------
Reporter: bens | Owner:
Type: bug | Status: new
Priority: normal | Milestone: 7.8.3
Component: Compiler | Version: 7.8.2
Resolution: | Keywords:
Operating System: Unknown/Multiple | Architecture:
Type of failure: Compile-time crash | Unknown/Multiple
Test Case: deriving/should_fail/T9071, | Difficulty:
T9071_2 | Unknown
Blocking: | Blocked By:
| Related Tickets:
-------------------------------------------------+-------------------------
Comment (by Reid Barton