Fix specific WidgetWin32Tests to not use Layout#2546

HeikoKlare merged 1 commit intoeclipse-platform:mastereclipse-platform/eclipse.platform.swt:masterfrom

vi-eclipse:amartya4256/fix_win32Widget_testvi-eclipse/eclipse.platform.swt:amartya4256/fix_win32Widget_testCopy head branch name to clipboard