Switch the function "readMix" from lazy "readFile" to strict "readFileUtf8",...

Switch the function "readMix" from lazy "readFile" to strict "readFileUtf8", similar to how "readTix" is implemented

Trace/Hpc/Mix.hs

@@ -28,7 +28,7 @@ import System.FilePath
 -- been introduced in that module, accessed by tick-number position
 -- in the list
 
-import Trace.Hpc.Util (HpcPos, insideHpcPos, Hash, HpcHash(..), catchIO)
+import Trace.Hpc.Util (HpcPos, insideHpcPos, Hash, HpcHash(..), catchIO, readFileUtf8)
 import Trace.Hpc.Tix
 
 -- | 'Mix' is the information about a modules static properties, like
@@ -93,7 +93,7 @@ readMix dirNames mod' = do
    res <- sequence [ (do let mixPath    = mixName dirName modName
                              parseError = error ("can not parse " ++ mixPath)
                              parse      = fromMaybe parseError . readMaybe
-                         mix <- parse `fmap` readFile mixPath
+                         mix <- parse `fmap` readFileUtf8 mixPath
                          case mod' of
                             Left  _   -> return $ Just mix -- Bypass hash check
                             Right tix -> return $ checkHash tix mix mixPath)

changelog.md

 # Changelog for [`hpc` package](http://hackage.haskell.org/package/hpc)
 
-## 0.7.0.0 *July 2023* 
+## 0.7.0.0 *August 2023* 
 
+  * The function `readMix` no longer uses lazyIO to read `.mix` files, which is consistent with the behaviour of the `readTix` function.
   * The import of the modules from this package is no longer considered safe, since we use functions from the `System.Directory` module from the `directory` package which is no longer considered safe beginning from version `1.3.8`.
   * Replace uses of `String` by `FilePath` in functions `readTix`, `writeTix`, `getTixFileName`, `readMix` and `mixCreate`.
   * Remove support for version of GHC below 8.6