{.deprecated: [existsFile: fileExists].} (#14735)

* {.deprecated: [existsFile: fileExists].}

* s/existsFile/fileExists/ except under deps

* workaround pending #14819

* fix test

tests/manyloc/nake/nake.nim

@@ -51,7 +51,7 @@ template withDir*(dir: string; body: untyped) =
   cd(curDir)
 
 when true:
-  if not existsFile("nakefile.nim"):
+  if not fileExists("nakefile.nim"):
     echo "No nakefile.nim found. Current working dir is ", getCurrentDir()
     quit 1
   var args = ""

tests/manyloc/nake/nakefile.nim

@@ -86,7 +86,7 @@ task "download", "download game assets":
     client = newHttpClient()
   path.add DirSep
   path.add(extractFilename(GameAssets))
-  if existsFile(path):
+  if fileExists(path):
     echo "The file already exists\n",
       "[R]emove  [M]ove  [Q]uit  [S]kip    Source: ", GameAssets
     case stdin.readLine.toLowerAscii