Sema: prepare to remove `?*StackTrace` argument from `unwrapError` and `call`

Now that we propagate the error return trace to all `callconv(.auto)`
functions, passing it explicitly to panic handlers is redundant.
b0a8931690mlugg committed on 1/24/2025, 8:50:20 PMparent83991ef
1 file changedLine totals unavailable