The `for lang` does not work on targets: D, Dart and Haxe

```python

for C:
    print("Target C")

for D:
    print("Target D")

for JS:
    print("Target JavaScript")

for DART:
    print("Target Dart")

for HAXE:
    print("Target Haxe")

for PY:
    print("Target Python")

```