[TrimmableTypeMap] Fix stale legacy JCW contamination when switching typemap flavors#11098

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simonrozsival wants to merge 3 commits intomainfrom

dev/simonrozsival/fix-trimmable-register-guard

Commits on Apr 9, 2026

[TrimmableTypeMap] Fix stale legacy JCW contamination when switching typemap flavors

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Add registerNatives assertion to ACW test

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Pin typemap switching test to CoreCLR

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