paperchalice 06aa8b189a [CodeGen] Add analyses to help for porting GC passes (#74972) ...

- `CollectorMetadataAnalysis` provides `GCStrategyMap`.
- `GCFunctionAnalysis` provides `GCFunctionInfo`.

`GCStrategyMap` owns `GCStrategy` pointers and this
pass is used by `AsmPrinter` to iterate all GC strategies.

Most passes that require `GCModuleInfo` actually require the
`GCFunctionInfo`,
so add `GCFunctionAnalysis` for convenience.

2023-12-13 15:56:12 +08:00

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