patch 7.4.1126
Problem:    Can only get the directory of the current window.
Solution:   Add window and tab arguments to getcwd() and haslocaldir().
            (Thinca, Hirohito Higashi)
diff --git a/src/testdir/test_getcwd.ok b/src/testdir/test_getcwd.ok
new file mode 100644
index 0000000..2369989
--- /dev/null
+++ b/src/testdir/test_getcwd.ok
@@ -0,0 +1,18 @@
+a Xdir1 1
+b Xtopdir 0
+c Xdir3 1
+a Xdir1 1
+b Xtopdir 0
+c Xdir3 1
+a Xdir1 1
+b Xtopdir 0
+c Xdir3 1
+x Xtopdir 0
+y Xdir2 1
+z Xdir3 1
+x Xtopdir 0
+y Xdir2 1
+z Xdir3 1
+x Xtopdir 0
+y Xdir2 1
+z Xdir3 1