Michael Schimmel
e07acc0208
The `UsageInfo` struct has been updated to include tracking for `used_upvalues` and `assigned_upvalues`. The `collect_usage` function has been modified to handle these new fields when encountering `Address::Upvalue`. The `map_params_to_args` function now takes `body_usage` as an argument to ensure that parameters assigned to or used in the body are correctly substituted. A new helper function, `collect_parameter_slots_set`, has been added to gather all parameter slots within a pattern. The inlining logic in `Optimizer::inline_call` has been enhanced to prevent inlining if a parameter is used or assigned in the function body but cannot be substituted. This addresses a bug where aggressive inlining could lead to incorrect code generation when parameters were reassigned. A new integration test, `test_closure_reassignment_optimization_bug`, has been added to specifically target and verify the fix for this inlining issue.