Bug 1431109 - Ignore a second incorrect warning with gcc (-Wuninitialized) r=froydnj

MozReview-Commit-ID: 1QiA78wR9xB

--HG--
extra : rebase_source : 3add57a9cc4a119145847fa2faa09671adfb8008

xpcom/base/StaticPtr.h

@@ -45,7 +45,15 @@ public:
 #ifdef DEBUG
   StaticAutoPtr()
   {
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wuninitialized"
+  // False positive with gcc. See bug 1430729
+#endif
     MOZ_ASSERT(!mRawPtr);
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
   }
 #endif