updated for version 7.4.268
Problem:    Using exists() on a funcref for a script-local function does not
            work.
Solution:   Translate <SNR> to the special byte sequence.  Add a test.
diff --git a/src/testdir/test_eval.in b/src/testdir/test_eval.in
index 214a99e..8c3d839 100644
--- a/src/testdir/test_eval.in
+++ b/src/testdir/test_eval.in
@@ -180,6 +180,9 @@
 :echo g:Foo(2)
 :echo Foo(3)
 :"
+:" script-local function used in Funcref must exist.
+:so test_eval_func.vim
+:"
 :/^start:/+1,$wq! test.out
 :" vim: et ts=4 isk-=\: fmr=???,???
 :call getchar()