PR libgcj/27171:
	* testsuite/libjava.lang/pr27171.java: New file.
	* testsuite/libjava.lang/pr27171.out: New file.
	* gnu/gcj/convert/Output_UTF8.java (havePendingBytes): Return
	true if we've seen a high surrogate.
	(write): Handle high surrogates at the end of the stream.
	Properly emit isolated low surrogates.

From-SVN: r113013