Merge pull request #12291 from compnerd/runtime-assert

Runtime: avoid an assertion in lldb

Author: compnerd

include/swift/Remote/MetadataReader.h

@@ -690,6 +690,8 @@ class MetadataReader {
 
     switch (Meta->getKind()) {
     case MetadataKind::Class:
+      if (!cast<TargetClassMetadata<Runtime>>(Meta)->isTypeMetadata())
+        return BuiltType();
       return readNominalTypeFromMetadata(Meta, skipArtificialSubclasses);
     case MetadataKind::Struct:
       return readNominalTypeFromMetadata(Meta);