func convT64(val uint64) unsafe.Pointer
func convTstring(val string) unsafe.Pointer
func convTslice(val []uint8) unsafe.Pointer

// interface type assertions x.(T)
func assertE2I(inter *byte, typ *byte) *byte
func assertE2I2(inter *byte, typ *byte) *byte
func panicdottypeE(have, want, iface *byte)
func panicdottypeI(have, want, iface *byte)
func panicnildottype(want *byte)
func typeAssert(s *byte, typ *byte) *byte

	{"convTnoptr", funcTag, 57},
	{"convT16", funcTag, 59},
	{"convT32", funcTag, 61},
	{"convT64", funcTag, 62},
	{"convTstring", funcTag, 63},
	{"convTslice", funcTag, 66},
	{"assertE2I", funcTag, 67},
	{"assertE2I2", funcTag, 67},
	{"panicdottypeE", funcTag, 68},
	{"panicdottypeI", funcTag, 68},
	{"panicnildottype", funcTag, 69},
	{"typeAssert", funcTag, 67},
	{"interfaceSwitch", funcTag, 70},
	{"ifaceeq", funcTag, 72},

		}
	case fint.Kind_&abi.KindMask == abi.Interface:
		ityp := (*interfacetype)(unsafe.Pointer(fint))
		if len(ityp.Methods) == 0 {
			// ok - satisfies empty interface
			goto okarg
		}
		if itab := assertE2I2(ityp, efaceOf(&obj)._type); itab != nil {
			goto okarg
		}
	}
	throw("runtime.SetFinalizer: cannot pass " + toRType(etyp).string() + " to finalizer " + toRType(ftyp).string())
okarg:

	if t == nil {
		// explicit conversions require non-nil interface value.
		panic(&TypeAssertionError{nil, nil, &inter.Type, ""})
	}
	return getitab(inter, t, false)
}

func assertE2I2(inter *interfacetype, t *_type) *itab {
	if t == nil {
		return nil
	}
	return getitab(inter, t, true)
}

// typeAssert builds an itab for the concrete type t and the