Set Function.name for funcs in variables and properties as per spec.

Implements correct Function.name for cases like following:
 * `var x = function () { ... }`
 * `var obj = {prop: function () { ... }}`

test/fixtures/transformation/spec-function-name/actual.js

@@ -0,0 +1,27 @@
+var obj = {
+  f: function () {
+    (function f() {
+      console.log(f);
+    })();
+  },
+
+  g: function () {
+    console.log(g);
+  },
+
+  h: function () {
+    console.log(h);
+  },
+
+  m: function () {
+    doSmth();
+  }
+};
+
+var f = function () {
+  console.log(f, g);
+};
+
+var g = function () {
+  doSmth();
+};

test/fixtures/transformation/spec-function-name/expected.js

@@ -0,0 +1,42 @@
+"use strict";
+
+var _selfGlobal = typeof global === "undefined" ? self : global;
+var obj = {
+  f: function f() {
+    (function f() {
+      console.log(f);
+    })();
+  },
+
+  g: (function () {
+    function _getOuter() {
+      return g;
+    }
+
+    return function g() {
+      console.log(_getOuter());
+    };
+  })(),
+
+  h: function h() {
+    console.log(_selfGlobal.h);
+  },
+
+  m: function m() {
+    doSmth();
+  }
+};
+
+var f = (function () {
+  function _getOuter() {
+    return f;
+  }
+
+  return function f() {
+    console.log(_getOuter(), g);
+  };
+})();
+
+var g = function g() {
+  doSmth();
+};

test/fixtures/transformation/spec-function-name/options.json

@@ -0,0 +1,3 @@
+{
+  "whitelist": ["spec.functionName"]
+}