typing: fix LGTM bot error

mesonbuild/ast/introspection.py

@@ -32,10 +32,14 @@ build_target_functions = ['executable', 'jar', 'library', 'shared_library', 'sha
 class IntrospectionHelper(argparse.Namespace):
     # mimic an argparse namespace
     def __init__(self, cross_file: str):
+        super().__init__()
         self.cross_file = cross_file  # type: str
         self.native_file = None       # type: str
         self.cmd_line_options = {}    # type: T.Dict[str, str]
 
+    def __eq__(self, other: object) -> bool:
+        return NotImplemented
+
 class IntrospectionInterpreter(AstInterpreter):
     # Interpreter to detect the options without a build directory
     # Most of the code is stolen from interpreter.Interpreter