Restrict scopes of __moduleName

[toddwong]

// file foo.js
import bar from "bar"
console.log(__moduleName);

Without this patch, the code above will output "bar" instead of "foo" if this is the first time "bar" was imported.

[guybedford]

Nice catch, thanks. Let's just make it a function argument then instead of a var?

[guybedford]

Newline after the })(); so the source map comment is on a fresh line.

[toddwong]

Thanks guybedford!

Yes, function argument is better!
Move the newline to after the })(); fails some tests (maybe because the result of transpileFunction.call(self, load, transpiler) ends with a comment line?), so it may be better to add anothing newline after the })(); instead?

I don't know the GitHub thing very well, should I attach another patch to this PR? or just submit another PR? Or maybe you could just do that for us directly and close this PR? (And I do think the last option is more efficient :) )

[guybedford]

Ah yes, two newlines then perhaps?

You can just add a new commit to the branch and it will show up on this PR. You can even rebase and force push the same branch to keep it as a single commit.

[toddwong]

Done! Easier than I thought.

[guybedford]

Thanks!