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Or<T> should be a new type of PhantomData<T> (#8212)

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# Objective

`Or<T>` should be a new type of `PhantomData<T>` instead of `T`.

## Solution

Make `Or<T>` a new type of `PhantomData<T>`.

## Migration Guide

`Or<T>` is just used as a type annotation and shouldn't be constructed.
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orzogc 2023-03-26 09:38:16 +08:00 committed by GitHub
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commit e71078af49
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crates/bevy_ecs/src/query/filter.rs
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@ -237,7 +237,7 @@ unsafe impl<T: Component> ReadOnlyWorldQuery for Without<T> {}
/// }
/// # bevy_ecs::system::assert_is_system(print_cool_entity_system);
/// ```
pub struct Or<T>(pub T);
pub struct Or<T>(PhantomData<T>);
#[doc(hidden)]
pub struct OrFetch<'w, T: WorldQuery> {