std.zig.AstGen: rename token_bytes parameter to ident_name_raw

This method is called on an identifier token, so let's rename the parameter to make this clear.
This is also how it's named on most of the caller's sides.

Author: mateusz834

lib/std/zig/AstGen.zig

@@ -13361,16 +13361,16 @@ fn detectLocalShadowing(
     scope: *Scope,
     ident_name: Zir.NullTerminatedString,
     name_token: Ast.TokenIndex,
-    token_bytes: []const u8,
+    ident_name_raw: []const u8,
     id_cat: Scope.IdCat,
 ) !void {
     const gpa = astgen.gpa;
-    if (token_bytes[0] != '@' and isPrimitive(token_bytes)) {
+    if (ident_name_raw[0] != '@' and isPrimitive(ident_name_raw)) {
         return astgen.failTokNotes(name_token, "name shadows primitive '{s}'", .{
-            token_bytes,
+            ident_name_raw,
         }, &[_]u32{
             try astgen.errNoteTok(name_token, "consider using @\"{s}\" to disambiguate", .{
-                token_bytes,
+                ident_name_raw,
             }),
         });
     }