path ops -- fix skp bugs

This fixes a series of bugs discovered by running
the small set of Skia skp files through pathops
to flatten the clips.
Review URL: https://codereview.chromium.org/14798004

git-svn-id: http://skia.googlecode.com/svn/trunk@9042 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/pathops/SkAddIntersections.cpp b/src/pathops/SkAddIntersections.cpp
index 9efd4d6..1884d4e 100644
--- a/src/pathops/SkAddIntersections.cpp
+++ b/src/pathops/SkAddIntersections.cpp
@@ -208,7 +208,7 @@
                         case SkIntersectionHelper::kLine_Segment: {
                             pts = ts.lineHorizontal(wn.pts(), wt.left(),
                                     wt.right(), wt.y(), wt.xFlipped());
-                            debugShowLineIntersection(pts, wt, wn, ts);
+                            debugShowLineIntersection(pts, wn, wt, ts);
                             break;
                         }
                         case SkIntersectionHelper::kQuad_Segment: {
@@ -235,7 +235,7 @@
                         case SkIntersectionHelper::kLine_Segment: {
                             pts = ts.lineVertical(wn.pts(), wt.top(),
                                     wt.bottom(), wt.x(), wt.yFlipped());
-                            debugShowLineIntersection(pts, wt, wn, ts);
+                            debugShowLineIntersection(pts, wn, wt, ts);
                             break;
                         }
                         case SkIntersectionHelper::kQuad_Segment: {