Replace SkFAIL with SK_ABORT.

SkFAIL is a legacy macro which is just SK_ABORT. This CL mechanically
changes uses of SkFAIL to SK_ABORT in preparation for its removal. The
related sk_throw macro will be changed independently, due to needing to
actually clean up its users.

Change-Id: Id70b5c111a02d2458dc60c8933f444df27d9cebb
Reviewed-on: https://skia-review.googlesource.com/35284
Reviewed-by: Derek Sollenberger <djsollen@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
diff --git a/src/gpu/vk/GrVkVaryingHandler.cpp b/src/gpu/vk/GrVkVaryingHandler.cpp
index 9a38159..8e43b76 100644
--- a/src/gpu/vk/GrVkVaryingHandler.cpp
+++ b/src/gpu/vk/GrVkVaryingHandler.cpp
@@ -58,7 +58,7 @@
         case kIImageStorage2D_GrSLType:
             return 0;
     }
-    SkFAIL("Unexpected type");
+    SK_ABORT("Unexpected type");
     return -1;
 }