This is somewhat dead code as unless you are using `JSON::Parser.new`
direcltly we never allocate `JSON::Ext::Parser` anymore.
But still, we should mark all its reference in case some code out there
uses that.
Followup: #6758bf74a977b
Previously in the JSON::Ext parser, when we encountered an "Infinity"
token (and weren't allowing NaN/Infinity) we would try to display the
"unexpected token" at the character before.
42ac170712
upstream.
* test/json: merge original test files from json upstream.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55667 b2dd03c8-39d4-4d8f-98ff-823fe69b080e