traverse: pass opts.scope instead of opts

lib/6to5/transformation/transformer.js

@@ -37,7 +37,7 @@ Transformer.prototype.transform = function (file) {
   astRun("enter");
 
   var build = function (exit) {
-    return function (node, parent, opts) {
+    return function (node, parent, scope) {
       // add any node type aliases that exist
       var types = [node.type].concat(t.ALIAS_KEYS[node.type] || []);
 
@@ -54,7 +54,7 @@ Transformer.prototype.transform = function (file) {
       if (exit) fn = fns.exit;
       if (!fn) return;
 
-      return fn(node, parent, file, opts.scope);
+      return fn(node, parent, file, scope);
     };
   };
 

lib/6to5/traverse/index.js

@@ -54,7 +54,7 @@ function traverse(parent, callbacks, opts) {
 
       // enter
       if (callbacks.enter) {
-        result = callbacks.enter(node, parent, opts2);
+        result = callbacks.enter(node, parent, opts2.scope);
 
         // stop iteration
         if (result === false) return;
@@ -67,7 +67,7 @@ function traverse(parent, callbacks, opts) {
 
       // exit
       if (callbacks.exit) {
-        maybeReplace(callbacks.exit(node, parent, opts2));
+        maybeReplace(callbacks.exit(node, parent, opts2.scope));
       }
     };