Make ReflectionAccessAnalyzer logic more similar to ILLink/ILC #105956
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Instead, report them immediately.
ReflectionAccessAnalyzer will need to be able to produce diagnostics with differing locations for a single call to GetReflectionAccessDiagnostics, to support warnings for DynamicallyAccessedMembers on type. This matches ReflectionMarker in ILLink and ILC, where MarkTypeForDynamicallyAccessedMembers takes a MessageOrigin rather than a DiagnosticContext.
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This was referenced Aug 5, 2024
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vitek-karas
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Aug 6, 2024
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ReflectionAccessAnalyzer is analogous to ILLink/ILC's ReflectionMarker, and will be responsible for producing warnings about DynamicallyAccessedMembers on types when we fix #102002. These warnings will not all have the same location since they can be reported on different members of the type.
To support this, this is changing ReflectionAccessAnalyzer to create a DiagnosticContext as needed when reporting a warning, instead of taking it as an argument, which would require all warnings to share the same location (since DiagnosticContext holds a Location). This is similar to how ReflectionMarker takes a MessageOrigin instead of DiagnosticContext.
The first change makes DiagnosticContext report warnings immediately, instead of using it as a bag of warnings to be reported later. The second change does the factoring in ReflectionAccessAnalyzer.