renamed "nevertype" to "never_type"

javascript/ql/src/semmle/javascript/TypeScript.qll

@@ -2134,7 +2134,7 @@ class NullType extends Type, @null_type { }
 /**
  * The `never` type.
  */
-class NeverType extends Type, @nevertype { }
+class NeverType extends Type, @never_type { }
 
 /**
  * The `symbol` type or a specific `unique symbol` type.

javascript/ql/src/semmlecode.javascript.dbscheme

@@ -625,7 +625,7 @@ case @type.kind of
 | 10 = @void_type
 | 11 = @undefined_type
 | 12 = @null_type
-| 13 = @nevertype
+| 13 = @never_type
 | 14 = @plainsymboltype
 | 15 = @uniquesymboltype
 | 16 = @objectkeywordtype

javascript/ql/src/semmlecode.javascript.dbscheme.stats

@@ -958,7 +958,7 @@
 <v>1</v>
 </e>
 <e>
-<k>@nevertype</k>
+<k>@never_type</k>
 <v>1</v>
 </e>
 <e>