sort the list of bugs in order to preserve the position of the entries in the JSON file

Summary: public
The main objective here is to reduce the list of changes as much as possible to that the change set in the JSON base case only relates to the changes in Infer

Reviewed By: sblackshear

Differential Revision: D2661085

fb-gh-sync-id: 113a695

scripts/build_integration_tests.py

@@ -64,7 +64,7 @@ def load_report(filename):
 def save_report(reports, filename):
     with open(filename, 'w') as file_out:
         filtered = []
-        for report in reports:
+        for report in sorted(reports):
             r = {}
             for key in REPORT_FIELDS:
                 if key in report: