[clang] Add llvm-ifs in test deps

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@374110 91177308-0d34-0410-b5e6-96231b3b80d8

test/CMakeLists.txt

@@ -108,6 +108,7 @@ if( NOT CLANG_BUILT_STANDALONE )
     llvm-cxxfilt
     llvm-dis
     llvm-dwarfdump
+    llvm-ifs
     llvm-lto2
     llvm-modextract
     llvm-nm