[patch] memleak in catch catch

[Aleksandar Ristovski]

Hello,

A trivial patch to fix memory leak in handle_gnu_v3_exceptions... this is probably going to change soon to allow setting catchpoints before program starts, but still.

Thanks,

Aleksandar Ristovski
QNX Software Systems


ChangeLog:
	* breakpoint.c (struct decode_line_args): New structure for passing
	arguments to decode_line_1.
	(call_decode_line_1): New function.
	(handle_gnu_v3_exceptions): Call decode_line_1 via catch_exception and
	the new call_decode_line_1 function. Free allocated string on failure.
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