rename t.getIds to t.getDeclarations and remove dead code

lib/6to5/types/index.js

@@ -502,12 +502,10 @@ t.toBlock = function (node, parent) {
  * declaration then it's assumed to be an assignable.
  *
  * @param {Object} node
- * @param {Boolean} [map]
- * @param {Array} [ignoreTypes]
  * @returns {Array|Object}
  */
 
-t.getIds = function (node, map, ignoreTypes) {
+t.getDeclarations = function (node) {
   var search = [].concat(node);
   var ids    = object();
 
@@ -515,11 +513,8 @@ t.getIds = function (node, map, ignoreTypes) {
     var id = search.shift();
     if (!id) continue;
 
-    // blacklist types
-    if (ignoreTypes && ignoreTypes.indexOf(id.type) >= 0) continue;
-
-    var nodeKeys = t.getIds.nodes[id.type];
-    var arrKeys  = t.getIds.arrays[id.type];
+    var nodeKeys = t.getDeclarations.nodes[id.type];
+    var arrKeys  = t.getDeclarations.arrays[id.type];
 
     var i, key;
 
@@ -545,11 +540,10 @@ t.getIds = function (node, map, ignoreTypes) {
     }
   }
 
-  if (!map) ids = keys(ids);
   return ids;
 };
 
-t.getIds.nodes = {
+t.getDeclarations.nodes = {
   AssignmentExpression: ["left"],
   ImportBatchSpecifier: ["name"],
   ImportSpecifier: ["name", "id"],
@@ -565,7 +559,7 @@ t.getIds.nodes = {
   AssignmentPattern: ["left"]
 };
 
-t.getIds.arrays = {
+t.getDeclarations.arrays = {
   PrivateDeclaration: ["declarations"],
   ComprehensionExpression: ["blocks"],
   ImportDeclaration: ["specifiers"],