Request for review 7170638: Use DTRACE_PROBE[N] in JNI Set and SetStatic Field.

[Coleen Phillimore]

Summary: Don't use HS_DTRACE_PROBE_CDECL_N and HS_DTRACE_PROBE_N directly.
Contributed-by: Mark Wielaard <mjw at redhat.com>

I made a small change to dtrace.hpp to fix code for bsd when 
ENABLE_DTRACE is true, and moved the test.

open webrev at http://cr.openjdk.java.net/~coleenp/7170638/
bug link at http://bugs.sun.com/view_bug.do?bug_id=7170638

Tested against nsk.dtrace.testlist and test in the patch.   Built on bsd.

Thanks,
Coleen