[Patch] Java: Prepare for %q, %< and %> in diagnostic messages

[Ranjit Mathew <rmathew at gmail dot com>]

Hi,

  This patch is a followup to the conversation in:

  http://gcc.gnu.org/ml/java/2004-09/threads.html#00143

To summarise, the Java front-end uses vsprintf() to
format messages before showing them as 
warnings/errors and it seemed non-trivial to convert
it to the new quoting mechanism.

What I have done here is to use the pretty-printer function
pp_format_text() and the global diagnostic context 
(global_dc) instead of vsprintf(), so that we can use the
new quoting mechanism. I tested this with a few
warning and error messages.

Tested on i686-pc-linux-gnu.

Ok for mainline?

Thanks,
Ranjit.

-- 
Ranjit Mathew          Email: rmathew AT gmail DOT com

Bangalore, INDIA.      Web: http://ranjitmathew.tripod.com/

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