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/GrDefaultPathRenderer.cpp b/src/gpu/GrDefaultPathRenderer.cpp
index 1f33e95..bd52ce1 100644
--- a/src/gpu/GrDefaultPathRenderer.cpp
+++ b/src/gpu/GrDefaultPathRenderer.cpp
@@ -441,7 +441,7 @@
                     }
                     break;
                 default:
-                    SkASSERT(!"Unknown path fFill!");
+                    SkDEBUGFAIL("Unknown path fFill!");
                     return false;
             }
         }