Add the missing test files.
diff --git a/src/testdir/test_signs.in b/src/testdir/test_signs.in
new file mode 100644
index 0000000..a2f15e9
--- /dev/null
+++ b/src/testdir/test_signs.in
@@ -0,0 +1,22 @@
+Tests for signs
+STARTTEST
+:so small.vim
+:if !has("signs")
+: e! test.ok
+: wq! test.out
+:endif
+:"
+:sign define JumpSign text=x
+:exe 'sign place 42 line=2 name=JumpSign buffer=' . bufnr('')
+:" Split the window to the bottom to verify :sign-jump will stay in the current
+:" window if the buffer is displayed there
+:bot split
+:exe 'sign jump 42 buffer=' . bufnr('')
+:call append(line('$'), winnr())
+:$-1,$w! test.out
+ENDTEST
+
+STARTTEST
+:qa!
+ENDTEST
+
diff --git a/src/testdir/test_signs.ok b/src/testdir/test_signs.ok
new file mode 100644
index 0000000..1f8c977
--- /dev/null
+++ b/src/testdir/test_signs.ok
@@ -0,0 +1,2 @@
+
+2