Side note: The reason that my integrated automated tests are usually
submitted last, is that integrated tests are more difficult to write;
extra care must be taken regarding the convention and avoid interfering
with other tests.

So I mostly rely on isolated (non-integrated) tests to identify the
correct behavior, and to confirm the fix. Then, work on the integrated version
after the fix is accepted.

Hope you'd understand.

Patch 2 of 2:
See the attached `0002_add-function-call-global-fallback-instance-tests.patch`.

This patch adds following automated checks on `Function.call()` and
`Function.apply()` to ActionScript section of Gnash testsuite:

• Function.apply() tests:
  • `this` inside function called with `Function.apply()` should be strictly equal to `_global`.
  • Property set to `this` inside function called with `Function.apply()` should end up in `_global` object.
  • `this` inside function called with `Function.apply(undefined)` should be strictly equal to `_global`.
  • Property set to `this` inside function called with `Function.apply(undefined)` should end up in `_global` object.
  • `this` inside function called with `Function.apply(null)` should be strictly equal to `_global`.
  • Property set to `this` inside function called with `Function.apply(null)` should end up in `_global` object.
• Function.call() tests:
  • `this` inside function called with `Function.call()` should be strictly equal to `_global`.
  • Property set to `this` inside function called with `Function.call()` should end up in `_global` object.
  • `this` inside function called with `Function.call(undefined)` should be strictly equal to `_global`.
  • Property set to `this` inside function called with `Function.call(undefined)` should end up in `_global` object.
  • `this` inside function called with `Function.call(null)` should be strictly equal to `_global`.
  • Property set to `this` inside function called with `Function.call(null)` should end up in `_global` object.

Might need a review, for the same reason as second half of patch #8933.

Gnash: 0.8.11dev (patched against git a72afa5 9-Mar-2016)
System: Debian GNU/Linux 7.0 Wheezy i386


(file #36594)

Current Gnash's implementation of `Function.call()` and `Function.apply()`
have an incorrect behavior when user specified `thisObject` argument as
`null` or `undefined`, which it caused the function to be called with `this`
instance set to an empty object rather than the `_global` object.

Patch 1 of 2:
See the attached `0001_supply-global-instance-fallback-for-function-call-apply.patch`.

This patch makes `Function.call()` and `Function.apply()` supply a reference
to `Global_as` (a.k.a. ActionScript `_global`) as the context of function call
if the `thisObject` argument of the method is specified as `null`
or `undefined`; fixing bug #47354.

Gnash: 0.8.11dev (patched against git 8b33692 7-Mar-2016)
System: Debian GNU/Linux 7.0 Wheezy i386