nickg / nvc / 26395721655

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Fix INTERNAL foreign-call signature mismatch (#1549)

rt: add tlab parameter to INTERNAL foreign-call signatures

_nvc_ieee_warnings, _nvc_current_delta, _std_standard_now,
_std_env_set_assert_format, and _std_env_set_assert_format_valid
were declared void f(jit_scalar_t *) but jit_internal_entry calls
them as f(args, tlab) per ffi_internal_t. The extra register arg is
ignored on x86 but the mismatch is undefined behaviour and traps
under stricter indirect-call type checks (e.g. wasm).

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