Bug 774619 - Fix browser_dbg_bfcache.js test by making GCLI force GC; r=past

browser/devtools/commandline/test/head.js

@@ -67,5 +67,10 @@ registerCleanupFunction(function tearDown() {
     gBrowser.removeCurrentTab();
   }
 
-  console = undefined;
+  // Force GC, because it seems that GCLI can outrun the garbage collector
+  // in some situations, which causes test failures in later tests
+  // Bug 774619 is an example.
+  window.QueryInterface(Ci.nsIInterfaceRequestor)
+      .getInterface(Ci.nsIDOMWindowUtils)
+      .garbageCollect();
 });

browser/devtools/debugger/test/Makefile.in

@@ -85,6 +85,7 @@ MOCHITEST_BROWSER_TESTS = \
 	browser_dbg_iframes.js \
 	browser_dbg_pause-exceptions.js \
 	browser_dbg_multiple-windows.js \
+	browser_dbg_bfcache.js \
 	browser_dbg_breakpoint-new-script.js \
 	browser_dbg_bug737803_editor_actual_location.js \
 	browser_dbg_progress-listener-bug.js \
@@ -93,14 +94,6 @@ MOCHITEST_BROWSER_TESTS = \
 	head.js \
 	$(NULL)
 
-ifneq ($(OS_ARCH),WINNT)
-MOCHITEST_BROWSER_TESTS += \
-	browser_dbg_bfcache.js \
-	$(NULL)
-else
-$(filter disabled-temporarily--bug-774619, browser_dbg_bfcache.js)
-endif
-
 MOCHITEST_BROWSER_PAGES = \
 	browser_dbg_tab1.html \
 	browser_dbg_tab2.html \