class.c (assume_compiled_node_struct): Rename type to class_flag_node_struct, as...

class.c (assume_compiled_node_struct): Rename type to class_flag_node_struct, as it is now also used for enable_assertions.

	* class.c (assume_compiled_node_struct):  Rename type to
	class_flag_node_struct, as it is now also used for enable_assertions.
	Rename assume_compiled_node typedef.  Rename excludep field to value.
	(find_assume_compiled_node):  Rename function to find_class_flag_node.
	Minor optimization - avoid needless strlen.
	(add_assume_compiled):  Some tweaking and optimization.
	Rename and generalize to add_class_flag takem an extra parameter.
	(add_assume_compled):  New just calls add_class_flag.
	(add_enable_assert, enable_assertions):  New functions.
	(enable_assert_tree):  New static.
	* java-tree.h (add_enable_assert, enable_assertions): New declarations.
	* lang.opt (fenable-assertions, fenable-assertions=,
	fdisable-assertions, fdisable-assertions=):  New options.
	* lang.c (java_handle_option):  Handle new options.
	* parse.y (build_incomplete_class_ref):  Handle class$ in an inner
	class in an interface - create helper class nested in outer interface.
        (build_assertion):  Short-circuit if enable_assertions is false.

From-SVN: r79710