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/utils/SkJSON.cpp b/src/utils/SkJSON.cpp
index 9b12208..1aedf58 100644
--- a/src/utils/SkJSON.cpp
+++ b/src/utils/SkJSON.cpp
@@ -414,7 +414,7 @@
                 SkDebugf("%s", slot->fValue.fBool ? "true" : "false");
                 break;
             default:
-                SkASSERT(!"how did I get here");
+                SkDEBUGFAIL("how did I get here");
                 break;
         }
         if (slot->fNext) {
@@ -490,7 +490,7 @@
             SkDebugf(" %s ", fArray.fInts[last] ? "true" : "false");
         } break;
         default:
-            SkASSERT(!"unsupported array type");
+            SkDEBUGFAIL("unsupported array type");
             break;
     }
 }