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diff --git a/tools/node_modules/eslint/node_modules/acorn/dist/walk.es.js b/tools/node_modules/eslint/node_modules/acorn/dist/walk.es.js
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+// AST walker module for Mozilla Parser API compatible trees
+
+// A simple walk is one where you simply specify callbacks to be
+// called on specific nodes. The last two arguments are optional. A
+// simple use would be
+//
+//     walk.simple(myTree, {
+//         Expression: function(node) { ... }
+//     });
+//
+// to do something with all expressions. All Parser API node types
+// can be used to identify node types, as well as Expression,
+// Statement, and ScopeBody, which denote categories of nodes.
+//
+// The base argument can be used to pass a custom (recursive)
+// walker, and state can be used to give this walked an initial
+// state.
+
+function simple(node, visitors, base, state, override) {
+  if (!base) { base = exports.base
+  ; }(function c(node, st, override) {
+    var type = override || node.type, found = visitors[type];
+    base[type](node, st, c);
+    if (found) { found(node, st); }
+  })(node, state, override);
+}
+
+// An ancestor walk keeps an array of ancestor nodes (including the
+// current node) and passes them to the callback as third parameter
+// (and also as state parameter when no other state is present).
+function ancestor(node, visitors, base, state) {
+  if (!base) { base = exports.base; }
+  var ancestors = [];(function c(node, st, override) {
+    var type = override || node.type, found = visitors[type];
+    var isNew = node != ancestors[ancestors.length - 1];
+    if (isNew) { ancestors.push(node); }
+    base[type](node, st, c);
+    if (found) { found(node, st || ancestors, ancestors); }
+    if (isNew) { ancestors.pop(); }
+  })(node, state);
+}
+
+// A recursive walk is one where your functions override the default
+// walkers. They can modify and replace the state parameter that's
+// threaded through the walk, and can opt how and whether to walk
+// their child nodes (by calling their third argument on these
+// nodes).
+function recursive(node, state, funcs, base, override) {
+  var visitor = funcs ? exports.make(funcs, base) : base;(function c(node, st, override) {
+    visitor[override || node.type](node, st, c);
+  })(node, state, override);
+}
+
+function makeTest(test) {
+  if (typeof test == "string")
+    { return function (type) { return type == test; } }
+  else if (!test)
+    { return function () { return true; } }
+  else
+    { return test }
+}
+
+var Found = function Found(node, state) { this.node = node; this.state = state; };
+
+// A full walk triggers the callback on each node
+function full(node, callback, base, state, override) {
+  if (!base) { base = exports.base
+  ; }(function c(node, st, override) {
+    var type = override || node.type;
+    base[type](node, st, c);
+    if (!override) { callback(node, st, type); }
+  })(node, state, override);
+}
+
+// An fullAncestor walk is like an ancestor walk, but triggers
+// the callback on each node
+function fullAncestor(node, callback, base, state) {
+  if (!base) { base = exports.base; }
+  var ancestors = [];(function c(node, st, override) {
+    var type = override || node.type;
+    var isNew = node != ancestors[ancestors.length - 1];
+    if (isNew) { ancestors.push(node); }
+    base[type](node, st, c);
+    if (!override) { callback(node, st || ancestors, ancestors, type); }
+    if (isNew) { ancestors.pop(); }
+  })(node, state);
+}
+
+// Find a node with a given start, end, and type (all are optional,
+// null can be used as wildcard). Returns a {node, state} object, or
+// undefined when it doesn't find a matching node.
+function findNodeAt(node, start, end, test, base, state) {
+  test = makeTest(test);
+  if (!base) { base = exports.base; }
+  try {
+    (function c(node, st, override) {
+      var type = override || node.type;
+      if ((start == null || node.start <= start) &&
+          (end == null || node.end >= end))
+        { base[type](node, st, c); }
+      if ((start == null || node.start == start) &&
+          (end == null || node.end == end) &&
+          test(type, node))
+        { throw new Found(node, st) }
+    })(node, state);
+  } catch (e) {
+    if (e instanceof Found) { return e }
+    throw e
+  }
+}
+
+// Find the innermost node of a given type that contains the given
+// position. Interface similar to findNodeAt.
+function findNodeAround(node, pos, test, base, state) {
+  test = makeTest(test);
+  if (!base) { base = exports.base; }
+  try {
+    (function c(node, st, override) {
+      var type = override || node.type;
+      if (node.start > pos || node.end < pos) { return }
+      base[type](node, st, c);
+      if (test(type, node)) { throw new Found(node, st) }
+    })(node, state);
+  } catch (e) {
+    if (e instanceof Found) { return e }
+    throw e
+  }
+}
+
+// Find the outermost matching node after a given position.
+function findNodeAfter(node, pos, test, base, state) {
+  test = makeTest(test);
+  if (!base) { base = exports.base; }
+  try {
+    (function c(node, st, override) {
+      if (node.end < pos) { return }
+      var type = override || node.type;
+      if (node.start >= pos && test(type, node)) { throw new Found(node, st) }
+      base[type](node, st, c);
+    })(node, state);
+  } catch (e) {
+    if (e instanceof Found) { return e }
+    throw e
+  }
+}
+
+// Find the outermost matching node before a given position.
+function findNodeBefore(node, pos, test, base, state) {
+  test = makeTest(test);
+  if (!base) { base = exports.base; }
+  var max;(function c(node, st, override) {
+    if (node.start > pos) { return }
+    var type = override || node.type;
+    if (node.end <= pos && (!max || max.node.end < node.end) && test(type, node))
+      { max = new Found(node, st); }
+    base[type](node, st, c);
+  })(node, state);
+  return max
+}
+
+// Fallback to an Object.create polyfill for older environments.
+var create = Object.create || function(proto) {
+  function Ctor() {}
+  Ctor.prototype = proto;
+  return new Ctor
+};
+
+// Used to create a custom walker. Will fill in all missing node
+// type properties with the defaults.
+function make(funcs, base) {
+  if (!base) { base = exports.base; }
+  var visitor = create(base);
+  for (var type in funcs) { visitor[type] = funcs[type]; }
+  return visitor
+}
+
+function skipThrough(node, st, c) { c(node, st); }
+function ignore(_node, _st, _c) {}
+
+// Node walkers.
+
+var base = {};
+
+base.Program = base.BlockStatement = function (node, st, c) {
+  for (var i = 0, list = node.body; i < list.length; i += 1)
+    {
+    var stmt = list[i];
+
+    c(stmt, st, "Statement");
+  }
+};
+base.Statement = skipThrough;
+base.EmptyStatement = ignore;
+base.ExpressionStatement = base.ParenthesizedExpression =
+  function (node, st, c) { return c(node.expression, st, "Expression"); };
+base.IfStatement = function (node, st, c) {
+  c(node.test, st, "Expression");
+  c(node.consequent, st, "Statement");
+  if (node.alternate) { c(node.alternate, st, "Statement"); }
+};
+base.LabeledStatement = function (node, st, c) { return c(node.body, st, "Statement"); };
+base.BreakStatement = base.ContinueStatement = ignore;
+base.WithStatement = function (node, st, c) {
+  c(node.object, st, "Expression");
+  c(node.body, st, "Statement");
+};
+base.SwitchStatement = function (node, st, c) {
+  c(node.discriminant, st, "Expression");
+  for (var i = 0, list = node.cases; i < list.length; i += 1) {
+    var cs = list[i];
+
+    if (cs.test) { c(cs.test, st, "Expression"); }
+    for (var i$1 = 0, list$1 = cs.consequent; i$1 < list$1.length; i$1 += 1)
+      {
+      var cons = list$1[i$1];
+
+      c(cons, st, "Statement");
+    }
+  }
+};
+base.ReturnStatement = base.YieldExpression = base.AwaitExpression = function (node, st, c) {
+  if (node.argument) { c(node.argument, st, "Expression"); }
+};
+base.ThrowStatement = base.SpreadElement =
+  function (node, st, c) { return c(node.argument, st, "Expression"); };
+base.TryStatement = function (node, st, c) {
+  c(node.block, st, "Statement");
+  if (node.handler) { c(node.handler, st); }
+  if (node.finalizer) { c(node.finalizer, st, "Statement"); }
+};
+base.CatchClause = function (node, st, c) {
+  c(node.param, st, "Pattern");
+  c(node.body, st, "ScopeBody");
+};
+base.WhileStatement = base.DoWhileStatement = function (node, st, c) {
+  c(node.test, st, "Expression");
+  c(node.body, st, "Statement");
+};
+base.ForStatement = function (node, st, c) {
+  if (node.init) { c(node.init, st, "ForInit"); }
+  if (node.test) { c(node.test, st, "Expression"); }
+  if (node.update) { c(node.update, st, "Expression"); }
+  c(node.body, st, "Statement");
+};
+base.ForInStatement = base.ForOfStatement = function (node, st, c) {
+  c(node.left, st, "ForInit");
+  c(node.right, st, "Expression");
+  c(node.body, st, "Statement");
+};
+base.ForInit = function (node, st, c) {
+  if (node.type == "VariableDeclaration") { c(node, st); }
+  else { c(node, st, "Expression"); }
+};
+base.DebuggerStatement = ignore;
+
+base.FunctionDeclaration = function (node, st, c) { return c(node, st, "Function"); };
+base.VariableDeclaration = function (node, st, c) {
+  for (var i = 0, list = node.declarations; i < list.length; i += 1)
+    {
+    var decl = list[i];
+
+    c(decl, st);
+  }
+};
+base.VariableDeclarator = function (node, st, c) {
+  c(node.id, st, "Pattern");
+  if (node.init) { c(node.init, st, "Expression"); }
+};
+
+base.Function = function (node, st, c) {
+  if (node.id) { c(node.id, st, "Pattern"); }
+  for (var i = 0, list = node.params; i < list.length; i += 1)
+    {
+    var param = list[i];
+
+    c(param, st, "Pattern");
+  }
+  c(node.body, st, node.expression ? "ScopeExpression" : "ScopeBody");
+};
+// FIXME drop these node types in next major version
+// (They are awkward, and in ES6 every block can be a scope.)
+base.ScopeBody = function (node, st, c) { return c(node, st, "Statement"); };
+base.ScopeExpression = function (node, st, c) { return c(node, st, "Expression"); };
+
+base.Pattern = function (node, st, c) {
+  if (node.type == "Identifier")
+    { c(node, st, "VariablePattern"); }
+  else if (node.type == "MemberExpression")
+    { c(node, st, "MemberPattern"); }
+  else
+    { c(node, st); }
+};
+base.VariablePattern = ignore;
+base.MemberPattern = skipThrough;
+base.RestElement = function (node, st, c) { return c(node.argument, st, "Pattern"); };
+base.ArrayPattern = function (node, st, c) {
+  for (var i = 0, list = node.elements; i < list.length; i += 1) {
+    var elt = list[i];
+
+    if (elt) { c(elt, st, "Pattern"); }
+  }
+};
+base.ObjectPattern = function (node, st, c) {
+  for (var i = 0, list = node.properties; i < list.length; i += 1)
+    {
+    var prop = list[i];
+
+    c(prop.value, st, "Pattern");
+  }
+};
+
+base.Expression = skipThrough;
+base.ThisExpression = base.Super = base.MetaProperty = ignore;
+base.ArrayExpression = function (node, st, c) {
+  for (var i = 0, list = node.elements; i < list.length; i += 1) {
+    var elt = list[i];
+
+    if (elt) { c(elt, st, "Expression"); }
+  }
+};
+base.ObjectExpression = function (node, st, c) {
+  for (var i = 0, list = node.properties; i < list.length; i += 1)
+    {
+    var prop = list[i];
+
+    c(prop, st);
+  }
+};
+base.FunctionExpression = base.ArrowFunctionExpression = base.FunctionDeclaration;
+base.SequenceExpression = base.TemplateLiteral = function (node, st, c) {
+  for (var i = 0, list = node.expressions; i < list.length; i += 1)
+    {
+    var expr = list[i];
+
+    c(expr, st, "Expression");
+  }
+};
+base.UnaryExpression = base.UpdateExpression = function (node, st, c) {
+  c(node.argument, st, "Expression");
+};
+base.BinaryExpression = base.LogicalExpression = function (node, st, c) {
+  c(node.left, st, "Expression");
+  c(node.right, st, "Expression");
+};
+base.AssignmentExpression = base.AssignmentPattern = function (node, st, c) {
+  c(node.left, st, "Pattern");
+  c(node.right, st, "Expression");
+};
+base.ConditionalExpression = function (node, st, c) {
+  c(node.test, st, "Expression");
+  c(node.consequent, st, "Expression");
+  c(node.alternate, st, "Expression");
+};
+base.NewExpression = base.CallExpression = function (node, st, c) {
+  c(node.callee, st, "Expression");
+  if (node.arguments)
+    { for (var i = 0, list = node.arguments; i < list.length; i += 1)
+      {
+        var arg = list[i];
+
+        c(arg, st, "Expression");
+      } }
+};
+base.MemberExpression = function (node, st, c) {
+  c(node.object, st, "Expression");
+  if (node.computed) { c(node.property, st, "Expression"); }
+};
+base.ExportNamedDeclaration = base.ExportDefaultDeclaration = function (node, st, c) {
+  if (node.declaration)
+    { c(node.declaration, st, node.type == "ExportNamedDeclaration" || node.declaration.id ? "Statement" : "Expression"); }
+  if (node.source) { c(node.source, st, "Expression"); }
+};
+base.ExportAllDeclaration = function (node, st, c) {
+  c(node.source, st, "Expression");
+};
+base.ImportDeclaration = function (node, st, c) {
+  for (var i = 0, list = node.specifiers; i < list.length; i += 1)
+    {
+    var spec = list[i];
+
+    c(spec, st);
+  }
+  c(node.source, st, "Expression");
+};
+base.ImportSpecifier = base.ImportDefaultSpecifier = base.ImportNamespaceSpecifier = base.Identifier = base.Literal = ignore;
+
+base.TaggedTemplateExpression = function (node, st, c) {
+  c(node.tag, st, "Expression");
+  c(node.quasi, st);
+};
+base.ClassDeclaration = base.ClassExpression = function (node, st, c) { return c(node, st, "Class"); };
+base.Class = function (node, st, c) {
+  if (node.id) { c(node.id, st, "Pattern"); }
+  if (node.superClass) { c(node.superClass, st, "Expression"); }
+  for (var i = 0, list = node.body.body; i < list.length; i += 1)
+    {
+    var item = list[i];
+
+    c(item, st);
+  }
+};
+base.MethodDefinition = base.Property = function (node, st, c) {
+  if (node.computed) { c(node.key, st, "Expression"); }
+  c(node.value, st, "Expression");
+};
+
+export { simple, ancestor, recursive, full, fullAncestor, findNodeAt, findNodeAround, findNodeAfter, findNodeBefore, make, base };