merge revision(s) 0ce2bdc76dd17aa3d42a352a6244c87a51e7606d: [Backport #19595]

	YJIT: Fix missing argc check in known cfuncs

	Previously we were missing a compile-time check that the known cfuncs
	receive the correct number of arguments.

	We noticied this because in particular when using ARGS_SPLAT, which also
	wasn't checked, YJIT would crash on code which was otherwise correct
	(didn't raise exceptions in the VM).

	This still supports vararg (argc == -1) cfuncs. I added an additional
	assertion that when we use the specialized codegen for one of these
	known functions that the argc are popped off the stack correctly, which
	should help ensure they're implemented correctly (previously the crash
	was usually observed on a future `leave` insn).

	[Bug #19595]
	---
	 bootstraptest/test_yjit.rb | 32 ++++++++++++++++++++++++++++++++
	 yjit/src/codegen.rs        |  4 +++-
	 2 files changed, 35 insertions(+), 1 deletion(-)

0 files changed, 0 insertions, 0 deletions