4779115f2b
Outline default query and hook provider function implementations The default query and hook provider functions call `bug!` with a decently long message. Due to argument inlining in `format_args!` ([`flatten_format_args`](https://github.com/rust-lang/rust/issues/78356)), this ends up duplicating the message for each query, adding ~90KB to `librustc_driver.so` of unreachable panic messages. To avoid this, we can outline the common `bug!` logic.
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