My clang now doesn't complain about !"foo".

src/utils/SkLua.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkLua.h"
 #include "SkCanvas.h"
 #include "SkData.h"
@@ skipping 888 matching lines @@
 
 static const char* rrect_type(const SkRRect& rr) {
     switch (rr.getType()) {
         case SkRRect::kUnknown_Type: return "unknown";
         case SkRRect::kEmpty_Type: return "empty";
         case SkRRect::kRect_Type: return "rect";
         case SkRRect::kOval_Type: return "oval";
         case SkRRect::kSimple_Type: return "simple";
         case SkRRect::kComplex_Type: return "complex";
     }
-    SkASSERT(!"never get here");
+    SkDEBUGFAIL("never get here");
     return "";
 }
 
 static int lrrect_rect(lua_State* L) {
     SkLua(L).pushRect(get_obj<SkRRect>(L, 1)->rect());
     return 1;
 }
 
 static int lrrect_type(lua_State* L) {
     lua_pushstring(L, rrect_type(*get_obj<SkRRect>(L, 1)));
@@ skipping 200 matching lines @@
     REG_CLASS(L, SkShader);
     REG_CLASS(L, SkTypeface);
     REG_CLASS(L, SkMatrix);
 }
 
 extern "C" int luaopen_skia(lua_State* L);
 extern "C" int luaopen_skia(lua_State* L) {
     SkLua::Load(L);
     return 0;
 }