var encoding/gob.tFloat

4 uses

	encoding/gob (current package)
		decode.go#L782: 	tFloat:   ignoreUint,
		decode.go#L1001: 		return fw == tFloat
		type.go#L243: 	tFloat     = bootstrapType("float", (*float64)(nil), 4)
		type.go#L464: 		return tFloat.gobType(), nil