Rollup merge of #104467 - fuzzypixelz:fix/attempt-to-substract-with-overflow, r=compi...

Fix substraction with overflow in `wrong_number_of_generic_args.rs`

Fixes #104287

This issue happens in the `suggest_moving_args_from_assoc_fn_to_trait_for_qualified_path` function, which seems to run before the error checking facilities can catch an invalid use of generic arguments. Thus we get a subtraction with overflow because the code implicitly assumes that the source program makes sense (or is this assumption not true even if the program is correct?).