AutoTest: Fix icons for results pane

Summary items with type pass or fail including warnings
had wrong or no icon at all.

Change-Id: I2ce3c7c8f0c9c93e80809281ede0aba17fc59e82
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/autotest/testresultmodel.cpp

@@ -69,9 +69,9 @@ static QIcon testResultIcon(Result::Type result) {
         case Result::MessageTestCaseFail:
             return icons[Result::Fail];
         case Result::MessageTestCaseSuccessWarn:
-            return icons[13];
-        case Result::MessageTestCaseFailWarn:
             return icons[14];
+        case Result::MessageTestCaseFailWarn:
+            return icons[15];
         default:
             return QIcon();
         }