feat(core/parser): add ast node value property (#4)

Author: Luke Bennett

Diff for: core/parser/parser.ts

@@ -73,6 +73,9 @@ function astNode(token: Token, overrd?: any): Token {
   if (token.type) {
     node.type = override.type || token.type;
   }
+  if (token.value) {
+    node.value = override.value || token.value;
+  }
 
   let keys = Object.keys(override);
   let key: any;

Diff for: testing/fixtures.js

@@ -25,6 +25,7 @@ export const comment = [
             {
               name: "color",
               type: "property",
+              value: "black"
             },
           ],
         }],