hg: build-infra/jdk9/hotspot: Clean up dtrace functionality, add separation of cc and dtrace from macosx logic.

[magnus.ihse.bursie at oracle.com]

Changeset: ee0e470a3b8c
Author:    ihse
Date:      2015-12-15 18:31 +0100
URL:       http://hg.openjdk.java.net/build-infra/jdk9/hotspot/rev/ee0e470a3b8c

Clean up dtrace functionality, add separation of cc and dtrace from macosx logic.

! makefiles/GensrcDtrace.gmk