fix cubic linear test

tests/PathOpsSimplifyTest.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"
 
 #define TEST(name) { name, #name }
 
@@ skipping 5524 matching lines @@
     path.quadTo(0, 1, 1, 2);
     path.lineTo(0, 3);
     path.close();
     path.moveTo(0, 0);
     path.lineTo(0, 0);
     path.quadTo(0, 1, 1, 1);
     path.close();
     testSimplify(reporter, path, filename);
 }
 
+static void bug5169(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path;
+path.moveTo(SkBits2Float(0x00000000), SkBits2Float(0x4281c71c));  // 0, 64.8889f
+path.cubicTo(SkBits2Float(0x434e0000), SkBits2Float(0x4281c71c), SkBits2Float(0x00000000), SkBits2Float(0xc2a238e4), SkBits2Float(0x00000000), SkBits2Float(0x4281c71c));  // 206, 64.8889f, 0, -81.1111f, 0, 64.8889f
+path.moveTo(SkBits2Float(0x43300000), SkBits2Float(0x41971c72));  // 176, 18.8889f
+path.cubicTo(SkBits2Float(0xc29e0000), SkBits2Float(0xc25c71c7), SkBits2Float(0x42b20000), SkBits2Float(0x42fbc71c), SkBits2Float(0x43300000), SkBits2Float(0x41971c72));  // -79, -55.1111f, 89, 125.889f, 176, 18.8889f
+    testSimplify(reporter, path, filename);
+}
+
 static void (*skipTest)(skiatest::Reporter* , const char* filename) = 0;
 static void (*firstTest)(skiatest::Reporter* , const char* filename) = 0;
 static void (*stopTest)(skiatest::Reporter* , const char* filename) = 0;
 
 static TestDesc tests[] = {
+    TEST(bug5169),
     TEST(testQuads73),
     TEST(testQuads72),
     TEST(testQuads71),
     TEST(testQuads70),
     TEST(testQuads69),
     TEST(testQuads68),
     TEST(testQuads67),
     TEST(testQuads66),
     TEST(dean4),
     TEST(fuzz763_4713_b),
@@ skipping 444 matching lines @@
 
 DEF_TEST(PathOpsSimplify, reporter) {
     if (runSubTests && runSubTestsFirst) {
         RunTestSet(reporter, subTests, subTestCount, firstSubTest, nullptr, stopTest, runReverse);
     }
     RunTestSet(reporter, tests, testCount, firstTest, skipTest, stopTest, runReverse);
     if (runSubTests && !runSubTestsFirst) {
         RunTestSet(reporter, subTests, subTestCount, firstSubTest, nullptr, stopTest, runReverse);
     }
 }