use full lookup for __module__ and __qualname__ in type repr

Author: timfel

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/type/TypeBuiltins.java

@@ -111,10 +111,10 @@ public abstract static class ReprNode extends PythonUnaryBuiltinNode {
 
         @Specialization
         public String repr(PythonClass self,
-                        @Cached("create()") ReadAttributeFromObjectNode readModuleNode,
-                        @Cached("create()") ReadAttributeFromObjectNode readQualNameNode) {
-            Object moduleName = readModuleNode.execute(self, __MODULE__);
-            Object qualName = readQualNameNode.execute(self, __QUALNAME__);
+                        @Cached("create(__GETATTRIBUTE__)") LookupAndCallBinaryNode readModuleNode,
+                        @Cached("create(__GETATTRIBUTE__)") LookupAndCallBinaryNode readQualNameNode) {
+            Object moduleName = readModuleNode.executeObject(self, __MODULE__);
+            Object qualName = readQualNameNode.executeObject(self, __QUALNAME__);
             return concat(moduleName, qualName);
         }