patch 9.1.1432: GTK GUI: Buffer menu does not handle unicode correctly

Problem:  GTK GUI: Buffer menu does not handle unicode correctly
Solution: Get rid of the BMHash() function (SUN Haitao)

fixes: #17403
closes: #17405

Signed-off-by: SUN Haitao <sunhaitao@devtaste.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

src/testdir/test_gui.vim

@@ -1769,4 +1769,17 @@ func Test_CursorHold_not_triggered_at_startup()
   call assert_equal(['g:cursorhold_triggered=0'], found)
 endfunc
 
+" Test that buffer names are shown at the end in the :Buffers menu
+func Test_Buffers_Menu()
+  doautocmd LoadBufferMenu VimEnter
+
+  let name = '天'
+  exe ':badd ' .. name
+  let nr = bufnr('$')
+
+  let cmd = printf(':amenu Buffers.%s\ (%d)', name, nr)
+  let menu = split(execute(cmd), '\n')[1]
+  call assert_match('^9999 '.. name, menu)
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab

src/version.c

@@ -709,6 +709,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1432,
 /**/
     1431,
 /**/