jv-scan.c (help): Document --complexity.

	* jv-scan.c (help): Document --complexity.
	(options): Added --complexity.
	(flag_complexity): New global.
	(main): Call `report'.
	* parse-scan.y (complexity): New global.
	(if_then_statement, if_then_else_statement,
	if_then_else_statement_nsi, switch_block_statement_group,
	while_expression, do_statement, for_begin, continue_statement,
	throw_statement, catch_clause, finally, method_invocation,
	conditional_and_expression, conditional_or_expression,
	conditional_expression): Update complexity.
	(reset_report): Reset complexity.
	(report): New function.

From-SVN: r37595