KOS_OP_CALL_FAST_NAMES

• Style: EXTRA. Schema: FASTVAR (slot index), CONST (kw names tuple cpool idx), COUNT (npos), NOARG.

• Stack: Same as CALL_VAR_NAMES. Callable from fast slot via KosNamespace_FastDeref.

• Compiler form: Not emitted by the compiler; available for manual bytecode construction.