Fix region clipping bugs
See external bug #58344

Change-Id: Iecd6c41fc8076cd76add2335d3442a6dd8878f12
diff --git a/libs/hwui/Stencil.cpp b/libs/hwui/Stencil.cpp
index ba2e6f2..2764523 100644
--- a/libs/hwui/Stencil.cpp
+++ b/libs/hwui/Stencil.cpp
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+#include "Debug.h"
 #include "Extensions.h"
 #include "Properties.h"
 #include "Stencil.h"