* gcj.texi (Object allocation): Remove _Jv_AllocBytes.
	(Mixing with C++): Document JvAllocBytes and RawDataManaged.

	* gcj/cni.h (JvAllocBytes): New public CNI function. Calls
	_Jv_AllocBytes.
	* gnu/gcj/RawDataManaged.java: New file.
	* java/lang/Thread.java (data): Declare as RawDataManaged.
	* java/lang/natThread.cc (init_native): Cast natThread data to
	RawDataManaged, not jobject.
	* Makefile.am (ordinary_java_source_files): Add RawDataManaged.
	* Makefile.in: Rebuilt.

From-SVN: r82372