Fix breakage of ARM EABI EH unwinding code.

[Richard Earnshaw]

The C++ libraries for arm-eabi port have been unbuildable since Jason
checked in his foreign exceptions unwinding patch on May 7th.  This
patch fixes the problems by adding the appropriate functionality to the
__cxa_type_match routine (the ARM unwinder model currently doesn't
support forced unwinding -- an ongoing issue for the ABI).

OK?

2007-05-23  Richard Earnshaw  <rearnsha@arm.com>

	* libsupc++/eh_arm.cc (__cxa_type_match): Handle foreign
	exceptions.
	* libsubpc++/eh_personality.cc: Don't try to set up foreign or
	forced unwind types here when using the ARM EABI unwinder.

R.

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