Builtin cd issues

[pablo-lamtenzan]

1) Must display properly an attempt to change to a no directory target and return a non-zero integer.

$ touch a ; cd a

2) Must return a non-zero value when cd attempts to access to a forbidden directory .

$ mkdir -m 0 ; cd

3) Must return a non zero value if attempts to change to a not existing directory

$ rm-rf dir ; cd dir

4) Must be able to move to the root (not complete sure)

$ cd ./

5) In this example the var OLDPWD has the wrong value:

$ mkdir dir/dir ; cd dir ; cd dir ; env | grep OLDPWD

6) Must be able to go back (not complete sure)

$ cd /

[pablo-lamtenzan]

I wrote some trash here: go back is cd - and cd ./ seems not do nothing in bash. The rest seems right

[pablo-lamtenzan]

All fixed, now cd supports all the previous issues.