Request for reviews (M): 7083184: JSR 292: don't store context class argument with call site dependencies

[Christian Thalinger]

http://cr.openjdk.java.net/~twisti/7083184/

7083184: JSR 292: don't store context class argument with call site dependencies
Reviewed-by:

The changes of 7071653 store a context class argument per call site
dependency in the dependency stream.  This is actually not required
since the context class is implicitly available with the first
argument; the call site object.  Additionally call site dependencies
should not depend on the very general super class CallSite but rather
its actual class.

src/share/vm/ci/ciEnv.cpp
src/share/vm/ci/ciEnv.hpp
src/share/vm/code/dependencies.cpp
src/share/vm/code/dependencies.hpp
src/share/vm/memory/universe.cpp
src/share/vm/opto/callGenerator.cpp