* final.c (final): Use xcalloc to allocate line_note_exists.
	* function.c (free_after_compilation): Free the temp_slots.
	(assign_stack_temp_for_type): Use xmalloc to allocate temp_slots.
	(combine_temp_slot): Free temp_slots when they get combined.
	(purge_addressof): Fix typo in comment.
	* stmt.c (mark_goto_fixup): Mark the fixup itself.
	(expand_fixup): Allocate the fixup with ggc_alloc_obj.

	* ggc.h: Include varray.h.
	(ggc_pending_trees): Declare.
	(ggc_mark_tree_children): Remove declaration.
	(ggc_mark_tree): Just push unmarked trees on ggc_pending_trees.
	* ggc-common.c (ggc_pending_trees): New variable.
	(ggc_mark_roots): Call ggc_mark_trees.
	(ggc_mark_tree_children): Rename to ggc_mark_trees.  Process all
	the ggc_pending_trees.
	* Makefile.in (GGC_H): New variable.  Use it throughout in place
	of ggc.h.

	* Makefile.in (GGC_H): New variable.  Use it throughout in place
	of ggc.h.

	* call.c: Don't include obstack.h.  Include ggc.h.
	(obstack_chunk_alloc): Don't define.
	(obstack_chunk_free): Likewise.
	(add_candidate): Allocate the z_candidate with ggc_alloc_obj.
	* decl.c (push_switch): Use xmalloc to allocate the cp_switch.
	(pop_switch): Free it.

	* decl2.c (grokclassfn): Set TREE_READONLY for PARM_DECLs.

	* dump.c (dequeue_and_dump): Don't try to print the bit_position
	if we don't have a DECL_FIELD_OFFSET.

	* Makefile.in (GGC_H): Add varray.h.

From-SVN: r32956