Changes typechecked to consistently return the original input string when passed a string module name as its argument. This replaces the behavior of sometimes returning the resolved module for that name and
sometimes returning the original string depending on various factors, which made the return type awkward to actually rely on anyway.
Changes typechecked to consistently return the original input string when passed a string module name as its argument. This replaces the behavior of sometimes returning the resolved module for that name and sometimes returning the original string depending on various factors, which made the return type awkward to actually rely on anyway.
Fixes #97.