Bug 1056410 - Mark more classes final, r=terrence

Bug 1047696 was blocked by the hazard here, so it ended up not marking problematic classes final. Mark them final.

--HG--
extra : rebase_source : f1a0bf6b3179f1217b92ecd32d5f44041d7399d9

js/src/devtools/rootAnalysis/annotations.js

@@ -143,6 +143,9 @@ var ignoreFunctions = {
     // generic to ignore by itself.
     "void* std::_Locale_impl::~_Locale_impl(int32)" : true,
 
+    // Bug 1056410 - devirtualization prevents the standard nsISupports::Release heuristic from working
+    "uint32 nsXPConnect::Release()" : true,
+
     // FIXME!
     "NS_LogInit": true,
     "NS_LogTerm": true,

js/xpconnect/src/xpcprivate.h

@@ -243,10 +243,10 @@ static inline bool IS_WN_REFLECTOR(JSObject* obj)
 // returned as function call result values they are not addref'd. Exceptions
 // to this rule are noted explicitly.
 
-class nsXPConnect : public nsIXPConnect,
-                    public nsIThreadObserver,
-                    public nsSupportsWeakReference,
-                    public nsIJSRuntimeService
+class nsXPConnect final : public nsIXPConnect,
+                          public nsIThreadObserver,
+                          public nsSupportsWeakReference,
+                          public nsIJSRuntimeService
 {
 public:
     // all the interface method declarations...
@@ -2010,7 +2010,7 @@ private:
 // XPCWrappedNative the wrapper around one instance of a native xpcom object
 // to be used from JavaScript.
 
-class XPCWrappedNative : public nsIXPConnectWrappedNative
+class XPCWrappedNative final : public nsIXPConnectWrappedNative
 {
 public:
     NS_DECL_CYCLE_COLLECTING_ISUPPORTS
@@ -2316,7 +2316,7 @@ NS_DEFINE_STATIC_IID_ACCESSOR(nsIXPCWrappedJSClass,
 // nsXPCWrappedJSClass represents the sharable factored out common code and
 // data for nsXPCWrappedJS instances for the same interface type.
 
-class nsXPCWrappedJSClass : public nsIXPCWrappedJSClass
+class nsXPCWrappedJSClass final : public nsIXPCWrappedJSClass
 {
     // all the interface method declarations...
     NS_DECL_ISUPPORTS