This replaces all the hand-coded variants of ABI_CallFunction with a
single generic function. It handles all existing cases, plus many new
cases that would have been annoying to hand-code.
The implementation is based on our AArch64 ABI_CallFunction, but
adapted for x64. The most notable differences are support for memory
operands and a new way for callers to specify the sizes of operands.
SPDX standardizes how source code conveys its copyright and licensing
information. See https://spdx.github.io/spdx-spec/1-rationale/ . SPDX
tags are adopted in many large projects, including things like the Linux
kernel.
If the compiler can detect an issue with a format string at compile
time, then we should take advantage of that and turn the issue into a
hard compile-time error as such problems almost always lead to UB.
This helps with catching logging or assertion messages that have been
converted over to fmt but are still using the old, non-fmt variants
of the logging macros.
This commit also fixes all incorrect usages that I could find.
