Fix for PR libgcj/2024, plus other class name cleanups:

Fix for PR libgcj/2024, plus other class name cleanups:

	* include/jvm.h (_Jv_VerifyFieldSignature,
	_Jv_VerifyMethodSignature, _Jv_VerifyClassName,
	_Jv_VerifyIdentifier, _Jv_ClassNameSamePackage): Moved from ...
	* include/java-interp.h: ... here.
	* defineclass.cc (UTF8_PEEK): No longer conditional on
	interpreter.
	(_Jv_VerifyOne): Likewise.
	(_Jv_VerifyFieldSignature): Likewise.
	(_Jv_VerifyMethodSignature): Likewise.
	(is_identifier_start): Likewise.
	(is_identifier_part): Likewise.
	(_Jv_VerifyIdentifier): Likewise.
	(_Jv_VerifyClassName): Likewise.
	(_Jv_VerifyClassName): Likewise.
	(_Jv_ClassNameSamePackage): Likewise.
	(_Jv_VerifyClassName): Fail if class name is too long.
	* java/lang/natClassLoader.cc (_Jv_NewArrayClass): Disallow array
	of void.
	* java/lang/natClass.cc (forName): Check syntax of class name.
	Include IllegalArgumentException.h.

From-SVN: r47334