add asserts to point<-->verb helpers

src/pathops/SkOpContour.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 SkOpContour_DEFINED
 #define SkOpContour_DEFINED
 
 #include "SkOpSegment.h"
@@ skipping 96 matching lines @@
         }
         return false;
     }
 
     bool done() const {
         return fDone;
     }
 
     const SkPoint& end() const {
         const SkOpSegment& segment = fSegments.back();
-        return segment.pts()[segment.verb()];
+        return segment.pts()[SkPathOpsVerbToPoints(segment.verb())];
     }
 
     void findTooCloseToCall() {
         int segmentCount = fSegments.count();
         for (int sIndex = 0; sIndex < segmentCount; ++sIndex) {
             fSegments[sIndex].findTooCloseToCall();
         }
     }
 
     void fixOtherTIndex() {
@@ skipping 60 matching lines @@
             fSegments[test].addCurveTo(0, 1, path, true);
         }
     }
 
     void topSortableSegment(const SkPoint& topLeft, SkPoint* bestXY, SkOpSegment** topStart);
     SkOpSegment* undoneSegment(int* start, int* end);
 
     int updateSegment(int index, const SkPoint* pts) {
         SkOpSegment& segment = fSegments[index];
         segment.updatePts(pts);
-        return segment.verb() + 1;
+        return SkPathOpsVerbToPoints(segment.verb()) + 1;
     }
 
 #if DEBUG_TEST
     SkTArray<SkOpSegment>& debugSegments() {
         return fSegments;
     }
 #endif
 
 #if DEBUG_ACTIVE_SPANS || DEBUG_ACTIVE_SPANS_FIRST_ONLY
     void debugShowActiveSpans() {
@@ skipping 23 matching lines @@
     bool fDone;
     bool fOperand;  // true for the second argument to a binary operator
     bool fXor;
     bool fOppXor;
 #if DEBUG_DUMP
     int fID;
 #endif
 };
 
 #endif