fix another fuzz

src/pathops/SkOpCoincidence.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef SkOpCoincidence_DEFINED
 #define SkOpCoincidence_DEFINED
 
 #include "SkTDArray.h"
@@ skipping 91 matching lines @@
     void setOppPtTEnd(const SkOpPtT* ptT) {
         SkOPASSERT(ptT == ptT->span()->ptT());
         SkOPASSERT(!fOppPtTStart || ptT->fT != fOppPtTStart->fT);
         SkASSERT(!fOppPtTStart || fOppPtTStart->segment() == ptT->segment());
         fOppPtTEnd = ptT;
         ptT->setCoincident();
     }
 
     void setOppPtTStart(const SkOpPtT* ptT) {
         SkASSERT(ptT == ptT->span()->ptT());
-        SkASSERT(!fOppPtTEnd || ptT->fT != fOppPtTEnd->fT);
+        SkOPASSERT(!fOppPtTEnd || ptT->fT != fOppPtTEnd->fT);
         SkASSERT(!fOppPtTEnd || fOppPtTEnd->segment() == ptT->segment());
         fOppPtTStart = ptT;
         ptT->setCoincident();
     }
 
     void setStarts(const SkOpPtT* coinPtTStart, const SkOpPtT* oppPtTStart) {
         this->setCoinPtTStart(coinPtTStart);
         this->setOppPtTStart(oppPtTStart);
     }
 
@@ skipping 171 matching lines @@
     SkCoincidentSpans* fTop;
     SkOpGlobalState* fGlobalState;
     bool fContinue;
     bool fSpanDeleted;
     bool fPtAllocated;
     bool fCoinExtended;
     bool fSpanMerged;
 };
 
 #endif