push implementation details of ICodeGenerator::print() into InstructionStream so they can be shared with ICodeModule.
copy variableList from ICodeGenerator to ICodeModule.
s/ScringAtom/const StringAtom/ in gencode.pl, regenerate vmtypes.h
build shouldn't *look* different yet.
Moved Context::interpret() local vars into Context private, added accessors for
stuff, using JavaScript::Lexer to lex debugger commands.
Fixed sign comparison warning in icg.cpp