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The `read` option for queries can rely on lexical variables inside the class. These constructs are fine from a technical perspective in TypeScript, but in practice, when the component/directive definition is being created, the read value is extracted into the definition, **outside** of the class. This breaks `this` references. To fix this, we are restricting the `read` option to literal values. Similar to `descendants`. Literal references are in practice constructs like: - `read: bla.X` - `read: X` where `bla` or `X` is never a `ThisKeywoord`- hence fixing the issue and also simplifying the patterns for easier single file compilation. PR Close #54257