const encoding/json.parseObjectKey

4 uses

	encoding/json (current package)
		scanner.go#L137: 	parseObjectKey   = iota // parsing object key (before colon)
		scanner.go#L220: 		return s.pushParseState(c, parseObjectKey, scanBeginObject)
		scanner.go#L291: 	case parseObjectKey:
		scanner.go#L300: 			s.parseState[n-1] = parseObjectKey