RFR (XS): 8223718: Checks in check_slot_type_no_lvt() should be always executed

[serguei.spitsyn at oracle.com]

Please, review fix for:
   https://bugs.openjdk.java.net/browse/JDK-8223718

Webrev:
http://cr.openjdk.java.net/~sspitsyn/webrevs/2019/8223718-jvmti-getlocal.1/


Summary:
   The JVMTI GetLocal<TYPE>() does not return the error code
   JVMTI_ERROR_INVALID_SLOT for the T_CONFLICT if the LVT is present.
   The fix is to always execute the check_slot_type_no_lvt().
   The test nsk/jvmti/unit/GetLocalVariable/getlocal003 is updated
   to expect the error code JVMTI_ERROR_INVALID_SLOT additionally to
   the JVMTI_ERROR_TYPE_MISMATCH in a couple of cases.

Testing:
   Successful execution of the nsk.jvmti tests (release/fastdebug).
   Mach5 run is in progress.

Thanks,
Serguei