fix __qualname__ in TypeBuiltins

- fix exception in deque (_collections) since __name__ is not available

Author: cosminbasca

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

@@ -943,8 +943,9 @@ String getName(PythonBuiltinClass cls, @SuppressWarnings("unused") PNone value)
         }
 
         @Specialization(guards = {"isNoValue(value)", "!isPythonBuiltinClass(cls)"})
-        Object getName(PythonClass cls, @SuppressWarnings("unused") PNone value) {
-            return cls.getQualName();
+        Object getName(PythonClass cls, @SuppressWarnings("unused") PNone value,
+                        @Cached("create()") ReadAttributeFromObjectNode getName) {
+            return getName.execute(cls, __QUALNAME__);
         }
 
         @Specialization(guards = "!isNoValue(value)")

graalpython/lib-graalpython/_collections.py

@@ -243,7 +243,7 @@ def __rmul__(self, times):
         return _mul(deque(self, maxlen=self.maxlen), times)
 
     def __hash__(self):
-        raise TypeError("unhashable type: '%s'" % self.__name__)
+        raise TypeError("unhashable type: '{}'".format(type(self).__name__))
 
     @synchronized
     def extendleft(self, iterable):