[Tests] add more test coverage

Author: ljharb

.nycrc

@@ -4,7 +4,7 @@
   "instrumentation": false,
   "sourceMap": false,
   "reporter": "html",
-  "lines": 96,
+  "lines": 95.95,
   "statements": 95,
   "functions": 96,
   "branches": 92,

.travis.yml

@@ -182,4 +182,3 @@ matrix:
   allow_failures:
     - os: osx
     - env: TEST=true ALLOW_FAILURE=true
-    - env: COVERAGE=true

test/fn.js

@@ -16,3 +16,13 @@ test('function name', function (t) {
     var obj = [ 1, 2, f, 4 ];
     t.equal(inspect(obj), '[ 1, 2, [Function: xxx], 4 ]');
 });
+
+test('anon function', function (t) {
+    var f = (function () {
+      return function () {};
+    }());
+    var obj = [ 1, 2, f, 4 ];
+    t.equal(inspect(obj), '[ 1, 2, [Function], 4 ]');
+
+    t.end();
+});