cd completion using aliased cd command

[Mark W. Johnson]

From: mwjohnso
To: bug-bash@gnu.org
Subject: cd completion using aliased cd command

Configuration Information [Automatically generated, do not change]:
Machine: i686
OS: cygwin
Compiler: gcc-4
Compilation CFLAGS:  -DPROGRAM='bash.exe' -DCONF_HOSTTYPE='i686' 
-DCONF_OSTYPE='cygwin' -DCONF_MACHTYPE='i686-pc-cygwin' -DCONF_VENDOR='pc' 
-DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL -DHAVE_CONFIG_H 
-DRECYCLES_PIDS   -I.  -I/usr/src/bash-4.1.10-4/src/bash-4.1 
-I/usr/src/bash-4.1.10-4/src/bash-4.1/include 
-I/usr/src/bash-4.1.10-4/src/bash-4.1/lib  -I/usr/include/ncursesw -g -O2 -pipe 
uname output: CYGWIN_NT-6.1 PC0009233 1.7.21(0.267/5/3) 2013-07-15 12:17 i686 
Cygwin
Machine Type: i686-pc-cygwin

Bash Version: 4.1
Patch Level: 10
Release Status: release

Description:

        I've just now updated my cygwin and now the tab completion for
        cd gives me:

        bash: cd: cd: No such file or directory
        bash: [: too many arguments
        bash: cd: cd: No such file or directory

        I've simplified the flow to the below. If I try to tab
        complete on _cd <tab-complete> all works OK.  Seems to have
        something to do with tab completion using the alias of cd.
        I've been using similar code for nearly 20 years all the way
        back to ksh, with never a problem until now.


Repeat-By:

        alias cd=_cd
        function cd { \cd "$@"; }
        
        cd <tab-complete>

        I get the message:

        bash: cd: cd: No such file or directory
        bash: [: too many arguments
        bash: cd: cd: No such file or directory

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