* java/io/LineNumberReader.java
	(mark): Improved error checking.
	(read): Likewise.
	(skip): Likewise. Skip is now really eating the specified number of
	characters.
	* java/io/CharArrayReader.java (read): It should throw
	IndexOutOfBoundsException and not ArrayIndexOutOfBoundsException (see
	mauve).
	* java/io/BufferedReader.java (readLine): Make readLine() really block
	until either EOF is reached or a true error happens.

From-SVN: r75180