Start using AnonymousMethodExecutionContext instead of the normal function execution context with arguments

jedi/plugins/stdlib.py

@@ -20,13 +20,13 @@ from jedi.inference.arguments import ValuesArguments, \
     repack_with_argument_clinic, AbstractArguments, TreeArgumentsWrapper
 from jedi.inference import analysis
 from jedi.inference import compiled
-from jedi.inference.value.instance import BoundMethod, InstanceArguments
+from jedi.inference.value.instance import BoundMethod, InstanceArguments, \
+    AnonymousMethodExecutionContext
 from jedi.inference.base_value import ContextualizedNode, \
     NO_VALUES, ValueSet, ValueWrapper, LazyValueWrapper
-from jedi.inference.value import ClassValue, ModuleValue, \
-    FunctionExecutionContext
+from jedi.inference.value import ClassValue, ModuleValue
 from jedi.inference.value.klass import ClassMixin
-from jedi.inference.value.function import FunctionMixin
+from jedi.inference.value.function import FunctionMixin, BaseFunctionExecutionContext
 from jedi.inference.value import iterable
 from jedi.inference.lazy_value import LazyTreeValue, LazyKnownValue, \
     LazyKnownValues
@@ -269,12 +269,16 @@ class SuperInstance(LazyValueWrapper):
 
 @argument_clinic('[type[, obj]], /', want_context=True)
 def builtins_super(types, objects, context):
-    if isinstance(context, FunctionExecutionContext):
+    if isinstance(context, BaseFunctionExecutionContext):
+        instance = None
+        if isinstance(context, AnonymousMethodExecutionContext):
+            instance = context.instance
         # TODO _arguments should be private. make this different.
-        if isinstance(context._arguments, InstanceArguments):
+        elif isinstance(getattr(context, '_arguments', None), InstanceArguments):
             instance = context._arguments.instance
             # TODO if a class is given it doesn't have to be the direct super
             #      class, it can be an anecestor from long ago.
+        if instance is not None:
             return ValueSet({SuperInstance(instance.inference_state, instance)})
 
     return NO_VALUES