DevTools: [Console] render console stacktraces consistently

LayoutTests/http/tests/inspector/console-resource-errors-expected.txt

Index: LayoutTests/http/tests/inspector/console-resource-errors-expected.txt
diff --git a/LayoutTests/http/tests/inspector/console-resource-errors-expected.txt b/LayoutTests/http/tests/inspector/console-resource-errors-expected.txt
index 9a79b9e300f0283c12fb6ec7c21a8d35942fa018..37da66f96be922ce1d4a19b0c00cc6815b3bf595 100644
--- a/LayoutTests/http/tests/inspector/console-resource-errors-expected.txt
+++ b/LayoutTests/http/tests/inspector/console-resource-errors-expected.txt
@@ -6,5 +6,5 @@ console-resource-errors-iframe.html:3 GET http://127.0.0.1:8000/inspector/missin
 console-resource-errors-iframe.html:4 GET http://127.0.0.1:8000/inspector/non-existent-script.js 404 (Not Found) console-message console-error-level
 console-resource-errors-iframe.html:8 GET http://127.0.0.1:8000/inspector/non-existent-iframe.html 404 (Not Found) console-message console-error-level
 console-resource-errors.html:17 Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/. console-message console-warning-level
-console-resource-errors.html:18 GET http://127.0.0.1:8000/inspector/non-existent-xhr 404 (Not Found)console-resource-errors.html:18 loadXHRconsole-resource-errors.html:10 performActionsVM:1 (anonymous function) InjectedScript._evaluateOn InjectedScript._evaluateAndWrap InjectedScript.evaluate console-message console-error-level
+console-resource-errors.html:18 GET http://127.0.0.1:8000/inspector/non-existent-xhr 404 (Not Found)loadXHR @ console-resource-errors.html:18performActions @ console-resource-errors.html:10(anonymous function) @ VM:1InjectedScript._evaluateOn @ VM:888InjectedScript._evaluateAndWrap @ VM:821InjectedScript.evaluate @ VM:687 console-message console-error-level