Code Review: MethodGroups2

tfpt review “/shelveset:MethodGroups2;REDMOND\tomat”

Method goups refactoring. Splits RubyMethodGroupInfo into
RubyLibraryMethodInfo, RubyMethodGroupInfo <: RubyMethodGroupBase.

Tomas

Changes look good. The xmldoc summaries on RubyMethodGroupInfo,
RubyLibraryMethodInfo and RubyMethodGroupBase need to be updated to
reflect the refactoring.