Bug 949324 - Fix -Wunused-function warnings in js/. r=luke

js/src/jit/IonMacroAssembler.cpp

@@ -1213,12 +1213,12 @@ IsCompilingAsmJS()
     IonContext *ictx = MaybeGetIonContext();
     return ictx && ictx->compartment == nullptr;
 }
-#endif
 
 static void
 AssumeUnreachable_(const char *output) {
     MOZ_ReportAssertionFailure(output, __FILE__, __LINE__);
 }
+#endif
 
 void
 MacroAssembler::assumeUnreachable(const char *output)

js/src/shell/js.cpp

@@ -3591,13 +3591,17 @@ EscapeForShell(AutoCStringVector &argv)
 }
 #endif
 
-Vector<const char*, 4, js::SystemAllocPolicy> sPropagatedFlags;
+static Vector<const char*, 4, js::SystemAllocPolicy> sPropagatedFlags;
 
+#ifdef DEBUG
+#if (defined(JS_CPU_X86) || defined(JS_CPU_X64)) && defined(JS_ION)
 static bool
 PropagateFlagToNestedShells(const char *flag)
 {
     return sPropagatedFlags.append(flag);
 }
+#endif
+#endif
 
 static bool
 NestedShell(JSContext *cx, unsigned argc, jsval *vp)