Bug 1254617 - browser_dbg_debugger-statement.js has unhandled promise rejections. r=ejpbruel

devtools/client/debugger/test/mochitest/browser_dbg_debugger-statement.js

@@ -3,11 +3,6 @@
 /* Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejections should be fixed.
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed(
-  "Error: Assertion failure: Should have an event loop.");
-
 /**
  * Tests the behavior of the debugger statement.
  */
@@ -83,6 +78,8 @@ function testDebuggerStatement([aGrip, aResponse]) {
 
   // Reach around the debugging protocol and execute the debugger statement.
   callInTab(gTab, "runDebuggerStatement");
+
+  return deferred.promise;
 }
 
 function closeConnection() {