Fix crash while parsing some invalid XML files: - Clear the Sax locator before leaving the Parse procedure - When reporting an error, check that the locator is valid before using it
Fix crash while parsing some invalid XML files:
- Clear the Sax locator before leaving the Parse procedure
- When reporting an error, check that the locator is valid before using it


Letractively/ada-util,flottokarotto/ada-util,Letractively/ada-util,flottokarotto/ada-util