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

src/gpu/GrDefaultPathRenderer.cpp

Index: src/gpu/GrDefaultPathRenderer.cpp
diff --git a/src/gpu/GrDefaultPathRenderer.cpp b/src/gpu/GrDefaultPathRenderer.cpp
index 1f33e95a77040d7249ddadf2d41e569b36d30345..bd52ce1f95dbacead7a12fe70f41b0ac6fceb411 100644
--- a/src/gpu/GrDefaultPathRenderer.cpp
+++ b/src/gpu/GrDefaultPathRenderer.cpp
@@ -441,7 +441,7 @@ bool GrDefaultPathRenderer::internalDrawPath(const SkPath& path,
                     }
                     break;
                 default:
-                    SkASSERT(!"Unknown path fFill!");
+                    SkDEBUGFAIL("Unknown path fFill!");
                     return false;
             }
         }