Set up indent-tabs-mode in lexer.ll and parser.yy

Set up indent-tabs-mode in lexer.ll and parser.yy

indent-tabs-mode has been switched off for C++ files with
directory-local variables.

However, for lack of working better indentation modes that cooperate
well with Bison and Flex files, lexer.ll and parser.yy are using a
tab-based indentation style oriented on the Linux kernel indentation
style.  In order to not cause an even greater inconsistent mess, local
file variables are used for switching tab-based indentation back on in
those files.

[joeneeman, 2012-09-25 23:59:21]

lgtm

[janek, 2012-09-26 05:24:37]

Do i understand correctly that this is something for Emacs' sake?
If so, please add this information to the commit message, so that non-emacs
people like me will immediately know what's it about.

thanks,
Janek

[dak, 2012-09-26 06:32:15]

On 2012/09/26 05:24:37, janek wrote:
> Do i understand correctly that this is something for Emacs' sake?
> If so, please add this information to the commit message, so that non-emacs
> people like me will immediately know what's it about.

Oops.  Sorry for the oversight, will do.

[janek, 2012-09-26 06:36:57]

On 2012/09/26 06:32:15, dak wrote:
> will do.

thanks, and LGTM