JDK-8019508.js.EXPECTED revision 605:7cc5ff16380f 
1SyntaxError:33:Expected property id but found ,
2({,})
3  ^
4SyntaxError:33:Expected property id but found ,
5({, a:2 })
6  ^
7SyntaxError:33:Expected property id but found ,
8({a:3,,})
9      ^
10SyntaxError:33:Expected comma but found ident
11({a:3 b:2}
12      ^
13