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Add error GHC-23482 #521

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Add error GHC-23482 #521

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8 changes: 8 additions & 0 deletions message-index/messages/GHC-23482/index.md
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---
title: TypeApplication
summary: A type application is only allowed with the TypeApplication extension enabled.
severity: error
introduced: 9.8.1
---

Applying a term to a type (using @ notation) requires enabling the TypeApplication extension.
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Could you please quote the text of the error message somewhere? This would help search engines to find this page.

/tmp/foo.hs:3:5: error:
    Illegal visible type application ‘@Int’
      Perhaps you intended to use TypeApplications
  |
3 | x = read @Int "42"
  |     ^^^^^^^^^

Also it's worth to mention that TypeApplications is implied by GHC2021 / GHC2024 and with modern GHCs one has to specify Haskell2010 explicitly to trigger the error.

4 changes: 4 additions & 0 deletions message-index/messages/GHC-23482/read-int/after/ReadInt.hs
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{-# LANGUAGE TypeApplications #-}
module ReadInt where

x = read @Int "42"
3 changes: 3 additions & 0 deletions message-index/messages/GHC-23482/read-int/before/ReadInt.hs
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module ReadInt where

x = read @Int "42"
3 changes: 3 additions & 0 deletions message-index/messages/GHC-23482/read-int/index.md
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---
title: Using the read function with a type-application
---
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