Merge pull request babel/babel-eslint#273 from mysticatea/fix-monkeypatching-for-2.3.0

Fix: Remove throwing an error when estraverse-fb has not found.

eslint/babel-eslint-parser/index.js

@@ -61,7 +61,7 @@ function monkeypatch() {
     estraverses.push(estraverseFb);
     assign(estraverseFb.VisitorKeys, t.VISITOR_KEYS);
   } catch (err) {
-    throw new Error("babel-eslint isn't currently compatible with ESLint 2.3.x. The recommendation is to pin to ESLint 2.2.x right now.");
+      // Ignore: ESLint v2.3.0 does not have estraverse-fb
   }
 
   // ESLint v1.9.0 uses estraverse directly to work around https://github.com/npm/npm/issues/9663
@@ -77,6 +77,7 @@ function monkeypatch() {
   escope.analyze = function (ast, opts) {
     opts.ecmaVersion = 6;
     opts.sourceType = "module";
+
     var results = analyze.call(this, ast, opts);
     return results;
   };
@@ -350,8 +351,6 @@ function monkeypatch() {
   };
 }
 
-exports.VisitorKeys = t.VISITOR_KEYS;
-
 exports.parse = function (code, options) {
   options = options || {};
 

eslint/babel-eslint-parser/package.json

@@ -33,7 +33,7 @@
   },
   "homepage": "https://github.com/babel/babel-eslint",
   "devDependencies": {
-    "eslint": "~2.2.0",
+    "eslint": "^2.4.0",
     "espree": "^3.0.0",
     "mocha": "^2.3.3"
   }