* java/lang/Throwable.java: Merge 1.4 support from classpath.
	(stackTraceBytes): Rename from stackTrace.
	* java/lang/Exception.java: Merge from classpath.
	* java/lang/StackTraceElement: New file from classpath.
	* gcj/javaprims.h: Rebuild CNI namespace declarations.
	* Makefile.am: Add StackTraceElement.
	* Makefile.in: Rebuilt.

From-SVN: r53836