#378: request failure properties

I created and merged a change draft for Jim’s
Issue #378 , “Add properties to describe failed requests”.

https://github.com/oasis-tcs/sarif-spec/blob/master/Documents/ChangeDrafts/Accepted/sarif-v2.0-issue-378-request-failure-properties.docx

After feedback from MS, we accepted Jim’s original proposal to put the properties on the  webResponse  object. I chose the name
noResponseReceived  for the Boolean property.

Rather than introducing a new property
failureMessage , I overloaded the existing
webResponse.reasonPhrase  property (which normally holds, for example,
"OK"  on 200 or  "Not found"  for 404) to hold the failure message in the “no response received” case.

Please take a look!

Next is Yekaterina’s
Issue #381 , “Associate descriptor metadata with thread flow locations”. (This is the “helper rule” feature.)

Larry