Fix for PR libgcj/9125:
	* gnu/gcj/runtime/natVMClassLoader.cc (findClass): Find Runtime
	object outside of loop.  Respect lib_control setting.
	* gnu/gcj/runtime/VMClassLoader.java (tried_libraries): New
	field.
	(lib_control): New field.
	(LIB_FULL, LIB_CACHE, LIB_NEVER): New constants.
	(VMClassLoader): Initialize new field.

From-SVN: r70600