Rollup code-splitting inputs.

README.md

Github Issue: rollup/rollup#372

Example Output: https://gist.github.com/shannonmoeller/280dda1f47e222c1ee88e5613bd01897

a.js

import { foo } from './foo';
import { bar } from './bar';

export function a() {
  return foo() + bar();
}

b.js

import { foo } from './foo';
import { baz } from './baz';

export function b() {
  return foo() + baz();
}

bar.js

export function bar() {
  return 'bar';
}

baz.js

export function baz() {
  return 'baz';
}

foo.js

export function foo() {
  return 'foo';
}