Fix problem in LayoutTest1 under gcc4. For some reason, toggledView was

being assigned to twice, while being passed to Add(). Under gcc4, the
second call to Add(toggledView = new TestView(), ...) was passing in the
original value of toggledView, not the new TestView, which caused a call
to debugger().

src/tests/kits/interface/layout/LayoutTest1.cpp

@@ -624,7 +624,7 @@ struct SplitterGroupLayoutTest1 : public Test {
 				// row 3
 				.AddSplit(B_HORIZONTAL, B_USE_DEFAULT_SPACING, 3)
 					.Add(new TestView(), 3)
-					.Add(toggledView = new TestView(), 2)
+					.Add(new TestView(), 2)
 					.Add(new TestView(), 1)
 					.End()
 				// make the row uncollapsible