Ensure shape_id is never used on T_IMEMO #13347
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It doesn't make sense to set ivars or anything shape related on a T_IMEMO. Co-Authored-By: John Hawthorn <[email protected]>
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ivoanjo
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**What does this PR do?** This PR fixes three issues in the profiler when used with latest ruby-head: 1. It's no longer possible to ask the object_id from a T_IMEMO object. This showed up as a Ruby VM crash with an error message "T_IMEMO can't have an object_id". (See ruby/ruby#13347 for the upstream change) 2. Creating new instances of a class is now inlined into the caller, and there is no longer a frame to represent the new. This broke some of our tests that expected the stack from allocating an object to have the `new` at the top. (See ruby/ruby#13080 for the upstream change) 3. Object ids now count towards the size of objects. This broke some of our tests that asserted on size of profiled objects. (See ruby/ruby#13159 for the upstream change) **Motivation:** Fix support for Ruby 3.5. **Additional Notes:** N/A **How to test the change?** I've updated our specs to cover these changes. Unfortunately, we don't yet test with Ruby 3.5 in CI, so you'll have to test manually if you want to see the fixes working with 3.5. (Note that these changes showed up after 3.5.0-preview1, so testing on -preview1 is not enough)
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It doesn't make sense to set ivars or anything shape related on a T_IMEMO.
cc @jhawthorn