Test suite passes even if clause 2.3.2 is not implemented about promises-tests

[domenic]

2.3.2 is actually redundant with 2.3.3, in the sense that implementing 2.3.3 will also implement 2.3.2. (But, implementing 2.3.2 does not imply implementing 2.3.3.) The reason it exists is that we want to allow people to go down different paths for known-promises vs. other thenables.

So, this is entirely as expected. If we removed 2.3.2, then we would add some tests ensuring that even known-promises go down the promise resolution procedure path. So it's more about governing what tests are not there, than about adding tests for it.