fix tests

tests/snapshots/parse__tests__data__mvm_backpack.vmt.snap

@@ -2,20 +2,26 @@
 source: tests/parse.rs
 expression: result
 ---
-unlitgeneric(UnlitGenericMaterial(
-  r#$basetexture: Some("vgui/pve/mvm_backpack"),
-  r#$surfaceprop: None,
-  r#$model: false,
-  r#$color: Vec3((1.0, 1.0, 1.0)),
-  r#$alpha: 1.0,
-  r#$alphatest: false,
-  r#$alphatestreference: 1.0,
-  r#$nocull: false,
-  r#$translucent: true,
-  r#$bumpmap: None,
-  r#$ignorez: true,
-  r#$nofog: false,
-  r#$receiveflashlight: false,
-  singlepassflashlight: false,
-  r#$no_fullbright: true,
-))
+{
+  "unlitgeneric": {
+    "$basetexture": "vgui/pve/mvm_backpack",
+    "$surfaceprop": null,
+    "$model": false,
+    "$color": [
+      1.0,
+      1.0,
+      1.0
+    ],
+    "$alpha": 1.0,
+    "$alphatest": false,
+    "$alphatestreference": 1.0,
+    "$nocull": false,
+    "$translucent": true,
+    "$bumpmap": null,
+    "$ignorez": true,
+    "$nofog": false,
+    "$receiveflashlight": false,
+    "singlepassflashlight": false,
+    "$no_fullbright": true
+  }
+}