`pass` keyword is mistaken as an identifier

```
SCRIPT ERROR: Parse Error: The identifier "pass" isn't declared in the current scope.
at: GDScript::load_byte_code (res://Scenes/Entities/Player/player.gdc:14554)
ERROR: Method failed. Returning: ERR_PARSE_ERROR
at: GDScript::load_byte_code (modules\gdscript\gdscript.cpp:782)
ERROR: Cannot load byte code from file 'res://Scenes/Entities/Player/player.gdc'.
at: (modules\gdscript\gdscript.cpp:2205)
```

Reproduce the parse failure from res://Scenes/Entities/Player/player.gdc at the reported location, then inspect the GDScript parser entry point in modules/gdscript/gdscript.cpp. Done means the `pass` keyword in this script parses successfully without the undeclared-identifier or bytecode-loading errors shown.

Written by the indexing model from the issue text.