1--TEST-- 2Invalid conflict resolution (unused trait as lhs of "as") 3--FILE-- 4<?php 5trait T1 { 6 function foo() {echo "T1\n";} 7} 8trait T2 { 9 function foo() {echo "T2\n";} 10} 11class C { 12 use T1 { 13 T2::foo as private; 14 } 15} 16--EXPECTF-- 17Fatal error: Required Trait T2 wasn't added to C in %slanguage017.php on line %d 18