[NO-MERGE] 46239 arm fix #53483
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[NO-MERGE] 46239 arm fix #53483
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The regression test <code>src\tests\JIT\Regressions\JitBlue\Runtime_46239</code> exercises various interesting corner cases of type layout that weren't handled properly in Crossgen2 on x86 and ARM[32]. This change fixes the remaining deficiencies and it also adds provisions for better runtime logging upon type layout mismatches. Thanks Tomas
With this change, the only remaining pipelines using Crossgen1 are "r2r.yml", "r2r-extra.yml" and "release-tests.yml". I haven't yet identified the pipeline running the "release-tests.yml" script; for the "r2r*.yml", these now remain the only pipelines exercising Crossgen1. I don't think it makes sense to switch them over to CG2 as we already have their CG2 counterparts; my expectation is that, once CG1 is finally decommissioned, they will be just deleted. Thanks Tomas
trylek
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I have found out that I put the fix into the improper place; in the CoreCLR runtime, this check takes place in InitializeFieldDescs so it needs to be treated on a per-field basis, not for the type being laid out as a whole. Thanks Tomas
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Temporary not-for-merge branch for testing the 46239 fix on ARM