const go/token.NOT

5 uses

	go/token (current package)
		token.go#L75: 	NOT    // !
		token.go#L179: 	NOT:    "!",

	go/parser
		parser.go#L1534: 	case token.ADD, token.SUB, token.NOT, token.XOR, token.AND:
		parser.go#L2228: 		token.ADD, token.SUB, token.MUL, token.AND, token.XOR, token.ARROW, token.NOT: // unary operators

	go/scanner
		scanner.go#L915: 			tok = s.switch2(token.NOT, token.NEQ)