testsuite_api.h (diamond_derivation<>::test): Expect ambiguity together with the standard exception classes.

2008-08-05  Paolo Carlini  <paolo.carlini@oracle.com>

	* testsuite/util/testsuite_api.h (diamond_derivation<>::test):
	Expect ambiguity together with the standard exception classes.
	* testsuite/27_io/ios_base/failure/cons_virtual_derivation.cc: Remove
	xfail.
	* testsuite/19_diagnostics/logic_error/cons_virtual_derivation.cc:
	Likewise.
	* testsuite/19_diagnostics/runtime_error/cons_virtual_derivation.cc:
	Likewise.
	* testsuite/19_diagnostics/system_error/cons_virtual_derivation.cc:
	Likewise.
	* testsuite/18_support/bad_alloc/cons_virtual_derivation.cc: Likewise.
	* testsuite/18_support/bad_cast/cons_virtual_derivation.cc: Likewise.
	* testsuite/18_support/bad_exception/cons_virtual_derivation.cc:
	Likewise.
	* testsuite/18_support/bad_typeid/cons_virtual_derivation.cc:
	Likewise.
	* testsuite/ext/concurrence_lock_error/cons_virtual_derivation.cc:
	Likewise.
	* testsuite/ext/forced_exception_error/cons_virtual_derivation.cc:
	Likewise.
	* testsuite/ext/concurrence_unlock_error/cons_virtual_derivation.cc:
	Likewise.
	* testsuite/20_util/bad_function_call/cons_virtual_derivation.cc:
	Likewise.

From-SVN: r138737