Use the unswapped end point y for early out case in winding_line

tests/PathTest.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkCanvas.h"
 #include "SkGeometry.h"
 #include "SkPaint.h"
@@ skipping 3524 matching lines @@
     // test on edge
     REPORTER_ASSERT(reporter, p.contains(4, 6));
     REPORTER_ASSERT(reporter, p.contains(6, 5));
     REPORTER_ASSERT(reporter, p.contains(6, 7));
     // test various crossings in y
     REPORTER_ASSERT(reporter, !p.contains(7, 5));
     REPORTER_ASSERT(reporter, p.contains(7, 6));
     REPORTER_ASSERT(reporter, !p.contains(7, 7));
     p.reset();
     p.moveTo(4, 4);
+    p.lineTo(8, 4);
+    p.lineTo(8, 8);
+    p.lineTo(4, 8);
+    // test on vertices
+    REPORTER_ASSERT(reporter, p.contains(4, 4));
+    REPORTER_ASSERT(reporter, p.contains(8, 4));
+    REPORTER_ASSERT(reporter, p.contains(8, 8));
+    REPORTER_ASSERT(reporter, p.contains(4, 8));
+    p.reset();
+    p.moveTo(4, 4);
     p.lineTo(6, 8);
     p.lineTo(2, 8);
     // test on edge
     REPORTER_ASSERT(reporter, p.contains(5, 6));
     REPORTER_ASSERT(reporter, p.contains(4, 8));
     REPORTER_ASSERT(reporter, p.contains(3, 6));
     p.reset();
     p.moveTo(4, 4);
     p.lineTo(0, 6);
     p.lineTo(4, 8);
@@ skipping 449 matching lines @@
     PathTest_Private::TestPathTo(reporter);
     PathRefTest_Private::TestPathRef(reporter);
     PathTest_Private::TestPathrefListeners(reporter);
     test_dump(reporter);
     test_path_crbug389050(reporter);
     test_path_crbugskia2820(reporter);
     test_skbug_3469(reporter);
     test_skbug_3239(reporter);
     test_bounds_crbug_513799(reporter);
 }