do not ever call PDecoratedMethod directly from a call node

Author: timfel

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/nodes/call/CallNode.java

@@ -46,7 +46,6 @@
 import com.oracle.graal.python.builtins.objects.function.PFunction;
 import com.oracle.graal.python.builtins.objects.function.PKeyword;
 import com.oracle.graal.python.builtins.objects.method.PBuiltinMethod;
-import com.oracle.graal.python.builtins.objects.method.PDecoratedMethod;
 import com.oracle.graal.python.builtins.objects.method.PMethod;
 import com.oracle.graal.python.nodes.ErrorMessages;
 import com.oracle.graal.python.nodes.PGuards;
@@ -129,12 +128,6 @@ private static Object callCall(VirtualFrame frame, Object callableObject, Object
         return callCallNode.execute(frame, call, PositionalArgumentsNode.prependArgument(callableObject, arguments), keywords);
     }
 
-    @Specialization
-    protected Object decoratedMethodCall(VirtualFrame frame, PDecoratedMethod callable, Object[] arguments, PKeyword[] keywords,
-                    @Cached CallNode recursive) {
-        return recursive.execute(frame, callable.getCallable(), arguments, keywords);
-    }
-
     @Specialization(guards = "isPBuiltinFunction(callable.getFunction())")
     protected Object methodCallBuiltinDirect(VirtualFrame frame, PMethod callable, Object[] arguments, PKeyword[] keywords,
                     @Shared("dispatchNode") @Cached CallDispatchNode dispatch,
@@ -200,7 +193,7 @@ protected Object builtinFunctionCall(VirtualFrame frame, PBuiltinFunction callab
         return dispatch.executeCall(frame, callable, createArgs.execute(callable, arguments, keywords));
     }
 
-    @Specialization(replaces = {"doObjectAndType", "decoratedMethodCall", "methodCallBuiltinDirect", "methodCallDirect", "builtinMethodCallBuiltinDirectCached",
+    @Specialization(replaces = {"doObjectAndType", "methodCallBuiltinDirect", "methodCallDirect", "builtinMethodCallBuiltinDirectCached",
                     "builtinMethodCallBuiltinDirect", "methodCall", "builtinMethodCall", "functionCall", "builtinFunctionCall"})
     protected Object doGeneric(VirtualFrame frame, Object callableObject, Object[] arguments, PKeyword[] keywords,
                     @Shared("dispatchNode") @Cached CallDispatchNode dispatch,