Fix #1988

jedi/inference/syntax_tree.py

@@ -695,8 +695,15 @@ def tree_name_to_values(inference_state, context, tree_name):
 
             if expr_stmt.type == "expr_stmt" and expr_stmt.children[1].type == "annassign":
                 correct_scope = parser_utils.get_parent_scope(name) == context.tree_node
+                ann_assign = expr_stmt.children[1]
                 if correct_scope:
                     found_annotation = True
+                    if (
+                        (ann_assign.children[1].type == 'name')
+                        and (ann_assign.children[1].value == tree_name.value)
+                        and context.parent_context
+                    ):
+                        context = context.parent_context
                     value_set |= annotation.infer_annotation(
                         context, expr_stmt.children[1].children[1]
                     ).execute_annotation()

test/completion/pep0484_basic.py

@@ -180,6 +180,11 @@ def argskwargs(*args: int, **kwargs: float):
     #? float()
     kwargs['']
 
+class Test:
+    str: str = 'abc'
+
+#? ['upper']
+Test.str.upp
 
 class NotCalledClass:
     def __init__(self, x):