InflaterInputStream (read): Don't return -1 unless the infate() call didn't deliver any output.

* java/util/zip/InflaterInputStream (read): Don't return -1 unless
	the infate() call didn't deliver any output. Throw a ZipException if
	the needsDictionary() call returns true.
	* java/io/ByteArrayInputStream (read): Remove redundant bounds checks.
	* java/io/InputStreamReader: Use the default buffer size for the
	contained BufferedInputStream.

From-SVN: r37846

libjava/java/io/InputStreamReader.java

@@ -46,7 +46,7 @@ public class InputStreamReader extends Reader
   {
     this.in = in instanceof BufferedInputStream
               ? (BufferedInputStream) in
-              : new BufferedInputStream(in, 250);
+              : new BufferedInputStream(in);
     /* Don't need to call super(in) here as long as the lock gets set. */
     this.lock = in;
     converter = decoder;