VM_CALL_VCALL    5154 compile.c      	    flag |= VM_CALL_VCALL;
VM_CALL_VCALL    1341 iseq.c         		if (ci->flag & VM_CALL_VCALL) rb_ary_push(flags, rb_str_new2("VCALL"));
VM_CALL_VCALL    1789 vm_insnhelper.c     if (ci->flag & VM_CALL_VCALL) stat |= MISSING_VCALL;
VM_CALL_VCALL    1833 vm_insnhelper.c 						 ci->flag & (VM_CALL_FCALL|VM_CALL_VCALL));
VM_CALL_VCALL    2157 vm_insnhelper.c 		if (ci->flag & VM_CALL_VCALL) stat |= MISSING_VCALL;