Stream duplication can cause INTERNAL

Creating EncapsInputStream and EncapsOutputStream was good, but there are some
problems in stream duplication (dup()) in AnyImpl and TypeCodeImpl.

The code set test for bug 4324936 (attached to that bug report) fails with
Merlin build b53.

The duplication calls wind up setting AnyImpl's stream variable to a CDRInputStream rather than an IIOPInputStream or EncapsInputStream.

org.omg.CORBA.INTERNAL: Should not use CDRInputStream directly vmcid: 0x0
minor code: 0 completed: No
        at

com.sun.corba.se.internal.iiop.CDRInputStream.createWCharBTCConverter(CDRInputSt
ream.java:492)
        at

com.sun.corba.se.internal.iiop.CDRInputStream_1_0.getWCharConverter(CDRInputStre
am_1_0.java:2030)
        at

com.sun.corba.se.internal.iiop.CDRInputStream_1_2.read_wstring(CDRInputStream_1_
2.java:66)
        at

com.sun.corba.se.internal.iiop.CDRInputStream.read_wstring(CDRInputStream.java:2
01)
        at
com.sun.corba.se.internal.corba.TypeCodeImpl.copy(TypeCodeImpl.java:2239)
        at
com.sun.corba.se.internal.corba.TypeCodeImpl.copy(TypeCodeImpl.java:2295)
        at
com.sun.corba.se.internal.corba.AnyImpl.write_value(AnyImpl.java:574)
        at

com.sun.corba.se.internal.iiop.CDROutputStream_1_0.write_any(CDROutputStream_1_0
.java:532)
        at

com.sun.corba.se.internal.iiop.CDROutputStream.write_any(CDROutputStream.java:23
9)
        at event._LoggerStub.process_event(_LoggerStub.java:19)
        at Client.main(Client.java:42)