* c-decl.c (c_expand_body): Don't generate RTL if flag_syntax_only.
	(lang_mark_false_label_stack): Remove.
	* c-lex.c (init_c_lex): Add file_info_tree as GC root.  Allocate
	<top level> string in GC area.
	(mark_splay_tree_node): New function.
	(mark_splay_tree): Likewise.
	* except.c (mark_eh_status): Only call lang_mark_false_label_stack
	if it exists.
	* ggc-callbacks.c (lang_mark_false_label_stack): Remove.
	* ggc-common.c (lang_mark_false_label_stack): Change type.
	* ggc.h (ggc_alloc_string): Add comment.
	(ggc_strdup): New function.

	* decl.c (lang_mark_false_label_stack): Remove.
	* lex.c (cp_mang_lang_type): Use ggc_alloc_cleared.

	* com.c (lang_mark_false_label_stack): Remove.

	Convert to GC.
	* Make-lang.in (s-java): Don't depend on ggc-callbacks.o.
	* Makefile.in (BACKEND): Don't include ggc-callbacks.o.
	(typeck.o): Depend on ggc.h.
	* class.c (add_method_1): Use GC functions for allocation.
	(init_class_processing): Register roots.
	* decl.c (ggc_p): Set to 1.
	(pending_local_decls): Make it static.
	(push_jvm_slot): Use GC functions for allocation.
	(init_decl_processing): Register roots.
	(give_name_to_locals): Use GC functions for allocation.
	(lang_mark_tree): New function.
	* java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Use GC
	functions for allocation.
	* jcf-parse.c (jcf_parse_source): Use ggc_strdup.
	* lex.c (java_lex): Use build_string, rather than replicating it
	inline.
	* parse.y (goal): Add more roots.
	(mark_parser_ctxt): New function.
	* typeck.c: Include ggc.h.

	* splay-tree.c (splay_tree_insert): Fix formatting.

From-SVN: r36687