Thomas Klemm 9350473ec8 YJIT: Fall back for explicit keywords in IFUNC block calls
The IFUNC fast path passes raw keyword values to rb_vm_yield_with_cfunc
without packing them into a Hash. For example, an Enumerable iterator
that yields [], key: i loses the keyword name when called by each_slice.

Use VM dispatch for VM_CALL_KWARG, as for keyword splats, so argument
setup preserves the keywords.

(cherry picked from commit 54d098816777fd29e716746c2adcb3bbe4f88710)
2026-11-06 22:16:53 +09:00
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