Add `eobjc` and `eswift` commands for running expressions from a specific language context
Add `eobjc` and `eswift` commands for running expressions from a specific language context

zats/chisel,dopcn/chisel,dopcn/chisel,gkassabli/chisel,programming086/chisel,dopcn/chisel,facebook/chisel,facebook/chisel,facebook/chisel