Fix weak_references count test

This test creates a lot of Objects held in an array, and a set of weak
references to them using WeakMap. It then clears the array and frees it
and asserts that all the weak references to it are also gone.

This test is failing because one of the dummy objects in our weakmap is
ending up on the stack, and so is being marked, even though we thought
that we'd removed the only reference to it.

This behaviour has changed since this commit:

https://github.com/ruby/ruby/commit/5b5ae3d9e064e17e2a7d8d21d739fcc62ae1075c

which rewrites `Integer#times` from C into Ruby. This change is somehow
causing the last object we append to our array to consistently end up on
the stack during GC.

This commit fixes the specific weakmap test by using an enumerator and
each, instead of `Integer#times`, and thus avoids having our last object
created end up on the stack.

0 files changed, 0 insertions, 0 deletions