Support typing comments for individual arguments. Close #3112

pylint/checkers/variables.py

@@ -1203,6 +1203,10 @@ def leave_assign(self, node):
     def leave_with(self, node):
         self._store_type_annotation_names(node)
 
+    def visit_arguments(self, node):
+        for annotation in node.type_comment_args:
+            self._store_type_annotation_node(annotation)
+
     # Relying on other checker's options, which might not have been initialized yet.
     @decorators.cachedproperty
     def _analyse_fallback_blocks(self):

tests/functional/u/unused_typing_imports.py

@@ -15,6 +15,7 @@
     NamedTuple,
     Optional,
     Pattern,
+    Sequence,
     Set,
     Tuple,
 )
@@ -54,3 +55,11 @@ def typing_fully_qualified():
     variable = None  # type: typing.Optional[str]
     other_variable: 'typing.Optional[str]' = None
     return variable, other_variable
+
+
+def function(arg1,  # type: Iterable
+             arg2  # type: List
+            ):
+    # type: (...) -> Sequence
+    """docstring"""
+    print(arg1, arg2)