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

BUG=
R=robertphillips@google.com

Review URL: https://codereview.chromium.org/22875037

git-svn-id: http://skia.googlecode.com/svn/trunk@10874 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/gl/GrGpuGL_program.cpp b/src/gpu/gl/GrGpuGL_program.cpp
index 7ead7b7..5548320 100644
--- a/src/gpu/gl/GrGpuGL_program.cpp
+++ b/src/gpu/gl/GrGpuGL_program.cpp
@@ -291,7 +291,7 @@
                                                         colorStages.begin(),
                                                         coverageStages.begin()));
         if (NULL == fCurrentProgram.get()) {
-            SkASSERT(!"Failed to create program!");
+            SkDEBUGFAIL("Failed to create program!");
             return false;
         }
         fCurrentProgram.get()->ref();