Commits on Nov 15, 2022

1. Allow using imported types in other types within the same file …

   In the test case (from issue vimeo#7116) both the type definition and the
   import of the typed lived in the same file. This caused `OpeningTypes`
   to be an `InlineTypeAlias` instead of a `LinkableTypeAlias`, in turn
   causing an 'Invalid type alias' exception[^1].
   
   By replacing the array union (+) with an array_merge, the import of the
   type overrides the initial type declaration within the `Main` class.
   This means type imports within one file act more like they would when in
   separate files.
   
   Fixes vimeo#7116
   
   [^1]: [src/Psalm/Type/Atomic.php:407](https://github.com/vimeo/psalm/blob/1986c8b4a8018b1819bc4b83b0f7e69c2c936792/src/Psalm/Type/Atomic.php#L407)

   

   annervisser committed Nov 15, 2022
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