fix fuzzer bug

src/pathops/SkOpSegment.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef SkOpSegment_DEFINE
 #define SkOpSegment_DEFINE
 
 #include "SkOpAngle.h"
@@ skipping 168 matching lines @@
             return false;
         }
         return true;
     }
 #endif
 
     void release(const SkOpSpan* );
     double distSq(double t, const SkOpAngle* opp) const;
 
     bool done() const {
-        SkASSERT(this->globalState()->debugSkipAssert() || fDoneCount <= fCount);
+        SkOPASSERT(fDoneCount <= fCount);
         return fDoneCount == fCount;
     }
 
     bool done(const SkOpAngle* angle) const {
         return angle->start()->starter(angle->end())->done();
     }
 
     SkDPoint dPtAtT(double mid) const {
         return (*CurveDPointAtT[fVerb])(fPts, fWeight, mid);
     }
@@ skipping 239 matching lines @@
     int fDoneCount;  // number of processed spans (zero initially)
     SkPath::Verb fVerb;
     bool fVisited;  // used by missing coincidence check
 #if DEBUG_COINCIDENCE
     mutable bool fDebugVisited;  // used by debug missing coincidence check
 #endif
     SkDEBUGCODE(int fID);
 };
 
 #endif