swift

ac448b86 - [Clang importer] Don't cache swift_attr source files that have CustomAttrs with arguments

[Clang importer] Don't cache swift_attr source files that have CustomAttrs with arguments Since we can't do a proper "deep" clone of expression nodes, cloning such a CustomAttr is necessarily shallow. In such cases, don't cache the swift_attr source files at all, so we get fresh attribute nodes for each such usage.