some pathops fuzz fixes

R=kjlubick@google.com
Bug: skia:
Change-Id: I0b2089f728f91ef5af780d0e9f91d266c252c054
Reviewed-on: https://skia-review.googlesource.com/c/169341
Auto-Submit: Cary Clark <caryclark@skia.org>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
diff --git a/src/pathops/SkOpCoincidence.cpp b/src/pathops/SkOpCoincidence.cpp
index 176d355..4cc032b 100644
--- a/src/pathops/SkOpCoincidence.cpp
+++ b/src/pathops/SkOpCoincidence.cpp
@@ -860,7 +860,7 @@
                 }
             } else if (outerOpp == innerCoin) {
                 const SkOpPtT* ooe = outer->oppPtTEnd();
-                SkASSERT(!ooe->deleted());
+                FAIL_IF(ooe->deleted());
                 const SkOpPtT* ice = inner->coinPtTEnd();
                 SkASSERT(!ice->deleted());
                 SkASSERT(outerCoin != innerOpp);