Specify --filecheck argument for dotest.py for the LLDB ToT builders

Change-Id: Icd4cdd66e5b4a80b197295505ed87434edd9c9ca
diff --git a/buildbotScripts/bashShell/svntotbuild/test.sh b/buildbotScripts/bashShell/svntotbuild/test.sh
index 5222cfb..c3ccc5f 100755
--- a/buildbotScripts/bashShell/svntotbuild/test.sh
+++ b/buildbotScripts/bashShell/svntotbuild/test.sh
@@ -4,6 +4,7 @@
 
 function appendCommonArgs {
   dotest_args+=(--executable "$buildDir/bin/lldb")
+  dotest_args+=(--filecheck "$buildDir/bin/FileCheck")
   for c in "gdb-remote packets" "lldb all"; do
     dotest_args+=(--channel "$c")
   done