8173888: Test for JDK-8169481 causes stack overflows in parser tests
Reviewed-by: jlaskey, sundar
SyntaxError: Invalid JSON: <json>:1:12 Trailing comma is not allowed in JSON
{ "a": 333, }
^
SyntaxError: Invalid JSON: <json>:1:8 Trailing comma is not allowed in JSON
[ 4343, ]
^