[IRGen] Fix crash in CVW generation for ObjC references #77545
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rdar://139664644 The code that differentiates between regular ObjC and native Swift ObjC references could crash when generics were involved. Instead of through the TypeInfo, we are going directly throught the SILType to the type decl, which avoids the crash caused by casting the TypeInfo.
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rdar://139664644
The code that differentiates between regular ObjC and native Swift ObjC references could crash when generics were involved. Instead of through the TypeInfo, we are going directly throught the SILType to the type decl, which avoids the crash caused by casting the TypeInfo.