* cp-tree.h (scratch_tree_cons): Remove.
	* call.c: Replace all uses of expr_tree_cons, saveable_tree_cons,
	and perm_tree_cons with plain tree_cons.
	* class.c: Likewise.
	* decl.c: Likewise.
	* decl2.c: Likewise.
	* except.c: Likewise.
	* expr.c: Likewise.
	* init.c: Likewise.
	* lex.c: Likewise.
	* method.c: Likewise.
	* parse.y: Likewise.
	* pt.c: Likewise.
	* repo.c: Likewise.
	* rtti.c: Likewise.
	* search.c: Likewise.
	* typeck.c: Likewise.
	* parse.c: Regenerated.
	* tree.c (build_srcloc): Simplify.

From-SVN: r29238