[Compile Time Constant Extraction] Look through Optional injection and underlying-to-opaque conversions #64004
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InjectIntoOptionalExpr
is an implicit cast that the extraction code may need to look through to get the underlying compile-time value.Similarly, for computed properties of an opaque type, look through the
UnderlyingToOpaqueExpr
.Resolves rdar://106059663
Resolves rdar://106006689