[cDAC] Add GetApproxTypeHandle DacDbi API#128921

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copilot/implement-getapproxtypehandle

Commits on Jun 2, 2026

Commits on Jun 5, 2026

Apply UpCastTypeIfNeeded equivalent in InstantiationApprox

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Commits on Jun 7, 2026

Merge remote-tracking branch 'rachel' into copilot/implement-getapproxtypehandle
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Commits on Jun 8, 2026

Fix cDAC dump test build: add TestInfrastructure using directive

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