Code Review: Kernel

tfpt review “/shelveset:Kernel;REDMOND\tomat”

Defines Kernel type stub in Core and renames Kernel type in libraries to
KernelOps.
This way, the Kernel module could be identified in both Core and
libraries by the Kernel type.
Enables libraries to monkey-patch Kernel - the type wasn’t stored in
module cache and therefore wasn’t available for monkey-patching from
libraries.
Also moves FlowTaint to RubyUtils.

Tomas