Add support for inspecting ICData objects (#5221)
ICData objects from the VM service surface informations contained in an
inline cache (IC) associated with a particular function call site. The
IC contains various details related to invocation type feedback, invocation
counts, and other information useful to the VM when making code optimization
decisions.
The general format of the statistics stored in ICData can vary across
runtime modes, so VmICDataDisplay does not attempt to format the data in
any meaningful way or provide help in the form of tool tips.
