patch 9.1.0415: Some functions are not tested

Problem:  Some functions are not tested
Solution: Add a few more tests, fix a few minor problems
          (Yegappan Lakshmanan)

closes: #14789

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/testdir/test_partial.vim b/src/testdir/test_partial.vim
index 4b054b5..b5a58f6 100644
--- a/src/testdir/test_partial.vim
+++ b/src/testdir/test_partial.vim
@@ -406,4 +406,18 @@
   call assert_false(F1 is N1)
 endfunc
 
+func Test_partial_method()
+  func Foo(x, y, z)
+    return x + y + z
+  endfunc
+  let d = {"Fn": function('Foo', [10, 20])}
+  call assert_fails('echo 30->d.Fn()', 'E1265: Cannot use a partial here')
+  delfunc Foo
+endfunc
+
+func Test_non_callable_type_as_method()
+  let d = {"Fn": 10}
+  call assert_fails('echo 30->d.Fn()', 'E1085: Not a callable type: d.Fn')
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab