Bug 945613 - Part 1: Suppress -Wdelete-non-virtual-dtor warning in nsAtomTable.cpp. r=ehsan

xpcom/ds/nsAtomTable.cpp

@@ -24,6 +24,10 @@
 
 using namespace mozilla;
 
+#ifdef __GNUC__
+#pragma GCC diagnostic ignored "-Wdelete-non-virtual-dtor"
+#endif
+
 /**
  * The shared hash table for atom lookups.
  *