analyse argument annotations as types really only when annotation_typing=True

--HG--
extra : transplant_source : %B2a%A7%A9%A6%2A%2C%21%11%A1%D3%A0%F4%0D%D1%C7K%97%60_

Cython/Compiler/Nodes.py

@@ -1583,7 +1583,7 @@ class FuncDefNode(StatNode, BlockNode):
         if arg.name in directive_locals:
             type_node = directive_locals[arg.name]
             other_type = type_node.analyse_as_type(env)
-        elif isinstance(arg, CArgDeclNode) and arg.annotation:
+        elif isinstance(arg, CArgDeclNode) and arg.annotation and env.directives['annotation_typing']:
             type_node = arg.annotation
             other_type = arg.inject_type_from_annotations(env)
             if other_type is None: