TOMLTable causes SIGABORT when parsing invalid table headers

[fullmetalsheep]

Hi there,

This is an error originally reported in AeroSpace Repo by andresalvareez

How to Replicate

Please try the following code - note the extra [

  do {
        try TOMLTable(string: "[[[testme]]")
 catch let e {
        // should be caught
    }

It appears to throw a SIGABORT which causes it to never hit the catch blocks either in our code, or in the TOMLTable guard clause

// file - TOMLTable.swift
guard let table = string.withCString({ tableCreateFromString($0, errorPointer) }) else {
	throw TOMLParseError(cTOMLParseError: errorPointer.pointee) // never hits here
}

This causes the program to exit abruptly.