Include request/response info with Abort error

addon/adapters/rest.js

@@ -1228,7 +1228,8 @@ function ajaxError(adapter, payload, requestData, responseData) {
   } else if (responseData.textStatus === 'timeout') {
     error = new TimeoutError();
   } else if (responseData.textStatus === 'abort' || responseData.status === 0) {
-    error = new AbortError();
+    // TODO REVIEW should we use an adapter method for this, e.g. like handleResponse?
+    error = handleAbort(requestData, responseData);
   } else {
     try {
       error = adapter.handleResponse(
@@ -1245,6 +1246,14 @@ function ajaxError(adapter, payload, requestData, responseData) {
   return error;
 }
 
+// Adapter abort error to include any relevent info, e.g. request/response:
+// 'The adapter operation was aborted'
+function handleAbort(requestData, responseData) {
+  let msg = `Request failed: ${requestData.method} ${requestData.url} ${requestData.errorThrown || ''}`;
+  let errors = [{ title: 'Adapter Error', detail: msg.trim(), status: responseData.status }];
+  return new AbortError(errors);
+}
+
 //From http://stackoverflow.com/questions/280634/endswith-in-javascript
 function endsWith(string, suffix) {
   if (typeof String.prototype.endsWith !== 'function') {