Simplify getFuncName.

lodash.src.js

@@ -1046,14 +1046,6 @@
        */
       support.enumPrototypes = propertyIsEnumerable.call(Ctor, 'prototype');
 
-      /**
-       * Detect if `Function#name` is supported (all but IE).
-       *
-       * @memberOf _.support
-       * @type boolean
-       */
-      support.funcNames = typeof Function.name == 'string';
-
       /**
        * Detect if the `toStringTag` of DOM nodes is resolvable (all but IE < 9).
        *
@@ -4043,29 +4035,20 @@
      * @param {Function} func The function to query.
      * @returns {string} Returns the function name.
      */
-    var getFuncName = (function() {
-      if (!support.funcNames) {
-        return constant('');
-      }
-      if (constant.name == 'constant') {
-        return baseProperty('name');
-      }
-      return function(func) {
-        var result = func.name,
-            array = realNames[result],
-            length = array ? array.length : 0;
+    function getFuncName(func) {
+      var result = func.name,
+          array = realNames[result],
+          length = array ? array.length : 0;
 
-        while (length--) {
-          var data = array[length],
-              otherFunc = data.func;
-
-          if (otherFunc == null || otherFunc == func) {
-            return data.name;
-          }
+      while (length--) {
+        var data = array[length],
+            otherFunc = data.func;
+        if (otherFunc == null || otherFunc == func) {
+          return data.name;
         }
-        return result;
-      };
-    }());
+      }
+      return result;
+    }
 
     /**
      * Gets the appropriate "indexOf" function. If the `_.indexOf` method is