* builtins.def (BUILT_IN_LLABS): Add.
	* builtins.c (expand_builtin): Also abort on BUILT_IN_LLABS.
	* c-common.c (c_common_nodes_builtins): Create builtin functions
	__builtin_llabs, and plain llabs unless no_nonansi_builtins
	outside of C99 mode.
	(expand_tree_builtin): Handle BUILT_IN_LLABS.

From-SVN: r36585