libjava/

	* java/lang/reflect/natVMProxy.cc (unbox): Use ffi_arg for
	integer return types smaller than a word.
	* testsuite/libjava.jar/ReturnInvocationHandler.java: New file.
	* testsuite/libjava.jar/ReturnProxyTest.jar: Likewise.
	* testsuite/libjava.jar/ReturnProxyTest.java: Likewise.
	* testsuite/libjava.jar/ReturnProxyTest.out: Likewise.
	* testsuite/libjava.jar/ReturnProxyTest.xfail: Likewise.
	* testsuite/libjava.jar/ReturnTypes.java: Likewise.
	* testsuite/libjava.jar/ReturnTypesImpl.java: Likewise.

From-SVN: r238312