Find a better JSON parser or implement our own

Required features:

• Streaming. We need to process files larger than V8 strings allow.
• Preserve property order.
• Good and actionable error messages. Our users often have issues with invalid JSON.
• Recover from common errors.
• Distinguish between integers and floating point numbers.
• Span for each non-symbol token - line number and column of start and end.

Common errors:

• Unquoted keys: { foo: "bar" }
• Superfluous commas: [1, 2, 3,]
• Wrong delimiter: [ "foo": "bar" ], { 1, 2, 3 }

Other easily recoverable errors:

• = (or anything else) instead of : in objects: { "foo"="bar" }
• Number format stuff, such as no digits before point (.3), leading zeros (0123), hexadecimals (0xdeadbeef)