fix broken module tests which caused gtkdoc-check to traceback on assert

Regression in commit 566c2c9a9c.

The interpreter details are a bit of black magic. Functions expect
tuples, but they receive lists and then the type-checking decorators
convert those to tuples.

So, directly manhandling a self._interpreter.func_*() but passing it the
tuple it nominally expected, actually explodes in your face by way of
failing an assert, then dumping 'ERROR: Unhandled python exception'.

Fixes use of gnome.gtkdoc(..., check: true), for example when building
glib.

mesonbuild/modules/__init__.py

@@ -91,8 +91,11 @@ class ModuleState:
                   'env': env,
                   'depends': depends,
                   }
+        # typed_* takes a list, and gives a tuple to func_test. Violating that constraint
+        # makes the universe (or at least use of this function) implode
+        real_args = list(args)
         # TODO: Use interpreter internal API, but we need to go through @typed_kwargs
-        self._interpreter.func_test(self.current_node, args, kwargs)
+        self._interpreter.func_test(self.current_node, real_args, kwargs)
 
     def get_option(self, name: str, subproject: str = '',
                    machine: MachineChoice = MachineChoice.HOST,