fix wrapper ctors

src/Generator.bf

@@ -1161,7 +1161,7 @@ abstract class Cpp2BeefGenerator
 				wrapperBuf.Append("self->~", parentSpelling);
 		}
 		else if (cursor.kind == .Constructor)
-			wrapperBuf.Append(parentSpelling);
+			wrapperBuf.Append("return ", parentSpelling);
 		else
 			wrapperBuf.Append(fullCursorName);
 		wrapperBuf.Append('(');