Fix cases of variable shadowing in /tests/.

If we manage to fix all the existing cases of variable shadowing, we
could enable -Wshadow.

Change-Id: Ib8b92275c5da71c4ee48540d434f3afdc45f4067
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/438819
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: Florin Malita <fmalita@google.com>
Reviewed-by: Florin Malita <fmalita@google.com>
diff --git a/tests/PathOpsCubicReduceOrderTest.cpp b/tests/PathOpsCubicReduceOrderTest.cpp
index b3d4ef9..9a1a6a1 100644
--- a/tests/PathOpsCubicReduceOrderTest.cpp
+++ b/tests/PathOpsCubicReduceOrderTest.cpp
@@ -12,6 +12,8 @@
 #include "tests/PathOpsTestCommon.h"
 #include "tests/Test.h"
 
+using namespace PathOpsCubicIntersectionTestData;
+
 #if 0 // disable test until stroke reduction is supported
 static bool controls_inside(const SkDCubic& cubic) {
     return between(cubic[0].fX, cubic[1].fX, cubic[3].fX)