Uncomment breaking test

Author: Simon Gladman

test/Interpreter/objc_class_resilience_stubs.swift

@@ -67,14 +67,14 @@ ResilientClassTestSuite.test("category on other class")
   blackHole(ResilientNSObjectSubclass())
 }
 
-//if loadClassrefMissing {
-//  ResilientClassTestSuite.test("RealizeResilientClass")
-//    .crashOutputMatches("class ResilientNSObjectSubclass requires missing Objective-C runtime feature")
-//    .code {
-//      expectCrashLater()
-//      print("About to crash...")
-//      forceMetadata()
-//    }
-//}
+if loadClassrefMissing {
+  ResilientClassTestSuite.test("RealizeResilientClass")
+    .crashOutputMatches("class ResilientNSObjectSubclass requires missing Objective-C runtime feature")
+    .code {
+      expectCrashLater()
+      print("About to crash...")
+      forceMetadata()
+    }
+}
 
 runAllTests()