[release/7.0] Use the regType for extracting the RegisterType #74670
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Backport of #74399 to release/7.0
/cc @kunalspathak
Customer Impact
With the usage of
BitConverter
APIs, we could see a wrong register type data being circulated leading to potential silent code gen issue. This PR makes sure that right data type is recorded during register allocation.Testing
Added test case.
Risk
Low.
IMPORTANT: Is this backport for a servicing release? If so and this change touches code that ships in a NuGet package, please make certain that you have added any necessary package authoring and gotten it explicitly reviewed.