add True, False, None

src/node-types.json

@@ -396,6 +396,11 @@
       ]
     }
   },
+  {
+    "type": "boolean",
+    "named": true,
+    "fields": {}
+  },
   {
     "type": "cache_clause",
     "named": true,
@@ -1699,6 +1704,14 @@
       "multiple": false,
       "required": true,
       "types": [
+        {
+          "type": "boolean",
+          "named": true
+        },
+        {
+          "type": "none",
+          "named": true
+        },
         {
           "type": "number",
           "named": true
@@ -2650,6 +2663,14 @@
     "type": ">=",
     "named": false
   },
+  {
+    "type": "False",
+    "named": false
+  },
+  {
+    "type": "True",
+    "named": false
+  },
   {
     "type": "_(",
     "named": false
@@ -3074,6 +3095,10 @@
     "type": "media",
     "named": false
   },
+  {
+    "type": "none",
+    "named": true
+  },
   {
     "type": "noop",
     "named": false