2010-04-26  Richard Guenther  <rguenther@suse.de>

	PR lto/42425
	* tree.c (free_lang_data_in_type): Do not free TYPE_CONTEXT
	if emitting debug information and it is either a function
	or a namespace decl.

	* g++.dg/lto/20100423-2_0.C: New testcase.

From-SVN: r158722