class IRB::Irb

def suspend_workspace(workspace)

information.
Used by the irb command +irb_load+, see IRB@IRB+Sessions for more

Context#workspace.
Evaluates the given block using the given +workspace+ as the 
def suspend_workspace(workspace)
  @context.workspace, back_workspace = workspace, @context.workspace
  begin
    yield back_workspace
  ensure
    @context.workspace = back_workspace
  end
end