Merge pull request #172 from oschwald/greg/json-number-null-fix

Correctly consume the null value for json.Number

jlexer/lexer.go

@@ -1097,6 +1097,7 @@ func (r *Lexer) JsonNumber() json.Number {
 	case tokenNumber:
 		return json.Number(r.Raw())
 	case tokenNull:
+		r.Null()
 		return json.Number("")
 	default:
 		r.errSyntax()