supress unknown-message warning

Author: timfel

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/PythonObjectNativeWrapperMR.java

@@ -103,6 +103,7 @@
 public class PythonObjectNativeWrapperMR {
     protected static String GP_OBJECT = "gp_object";
 
+    @SuppressWarnings("unknown-message")
     @Resolve(message = "com.oracle.truffle.llvm.spi.GetDynamicType")
     abstract static class GetDynamicTypeNode extends Node {
         @Child GetClassNode getClass = GetClassNode.create();