Sema: Handle invalid conformance in ApplyClassifier::classifyApply()

Author: slavapestov

lib/Sema/TypeCheckEffects.cpp

@@ -1684,6 +1684,8 @@ class ApplyClassifier {
     const bool hasAnyConformances =
         llvm::any_of(substitutions.getConformances(),
                      [](const ProtocolConformanceRef conformance) {
+                       if (conformance.isInvalid())
+                         return false;
                        auto *requirement = conformance.getProtocol();
                        return !requirement->getInvertibleProtocolKind();
                      });

validation-test/compiler_crashers_2/59b42964e169b6fa.swift renamed to validation-test/compiler_crashers_2_fixed/59b42964e169b6fa.swift

@@ -1,5 +1,5 @@
 // {"signature":"swift::ProtocolConformanceRef::getProtocol() const"}
-// RUN: not --crash %target-swift-frontend -typecheck %s
+// RUN: not %target-swift-frontend -typecheck %s
    func a<each b {
                    enum c {
                     case struct  var d: e      struct e {