allow curves on side of lines to be very small

tests/PathOpsOpTest.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "PathOpsExtendedTest.h"
 #include "PathOpsTestCommon.h"
 
 class PathTest_Private {
@@ skipping 5330 matching lines @@
     path.setFillType(SkPath::kWinding_FillType);
     path.moveTo(3, 4);
     path.cubicTo(0, 6, 6, 1, 4, 2);
     path.close();
     pathB.setFillType(SkPath::kWinding_FillType);
     pathB.moveTo(1, 6);
     pathB.cubicTo(2, 4, 4, 3, 6, 0);
     pathB.close();
     // DEBUG_UNDER_DEVELOPMENT  cubics_d3 disable expectation check for now
     // fails because segment 3 is marked as unorderable ?
-    testPathOpCheck(reporter, path, pathB, kDifference_SkPathOp, filename, !FLAGS_runFail);
+    testPathOp(reporter, path, pathB, kDifference_SkPathOp, filename);
 }
 
 static void cubics_o(skiatest::Reporter* reporter, const char* filename) {
     SkPath path, pathB;
     path.setFillType(SkPath::kWinding_FillType);
     path.moveTo(1, 4);
     path.cubicTo(2, 6, 5, 0, 5, 3);
     path.close();
     pathB.setFillType(SkPath::kWinding_FillType);
     pathB.moveTo(0, 5);
@@ skipping 1180 matching lines @@
 static struct TestDesc repTests[] = {
     TEST(loops44i),
     TEST(loops45i),
     TEST(loops46i),
 };
 
 DEF_TEST(PathOpsRepOp, reporter) {
   for (int index = 0; index < 2; ++index)
     RunTestSet(reporter, repTests, SK_ARRAY_COUNT(repTests), nullptr, nullptr, nullptr, false);
 }