Revert "Create #alias method, callable on any object, _ by default."

This reverts commit c43de549ba.

Conflicts:

	test/objects.js

test/objects.js

@@ -11,7 +11,7 @@ $(document).ready(function() {
   });
 
   test("objects: functions", function() {
-    var expected = ["alias", "all", "any", "bind", "bindAll", "breakLoop", "buildLookup", "clone", "compact",
+    var expected = ["all", "any", "bind", "bindAll", "breakLoop", "buildLookup", "clone", "compact",
     "compose","defer", "delay", "detect", "each", "every", "extend", "filter", "first",
     "flatten", "foldl", "foldr", "forEach", "functions", "head", "identity", "include",
     "indexOf", "inject", "intersect", "invoke", "isArguments", "isArray", "isDate", "isElement", "isEmpty", "isEqual",
@@ -19,7 +19,7 @@ $(document).ready(function() {
     "methods", "min", "noConflict", "pluck", "range", "reduce", "reduceRight", "reject", "rest", "select",
     "size", "some", "sortBy", "sortedIndex", "tail", "tap", "template", "times", "toArray", "uniq",
     "uniqueId", "values", "without", "wrap", "zip"];
-    ok(_(expected).isEqual(_.methods(_)), 'provides a sorted list of functions');
+    same(expected, _.methods(_), 'provides a sorted list of functions');
     var obj = {a : 'dash', b : _.map, c : (/yo/), d : _.reduce};
     ok(_.isEqual(['b', 'd'], _.functions(obj)), 'can grab the function names of any passed-in object');
   });
@@ -185,19 +185,4 @@ $(document).ready(function() {
       value();
     ok(returned == 6 && intercepted == 6, 'can use tapped objects in a chain');
   });
-  
-
-  test("objects: alias", function() {
-    _.alias('isEqual', 'isTheSame');
-    ok(_.isTheSame(9, 9), 'by default aliases methods on underscore');
-    delete _.isTheSame;
-    //
-    var o = { hi: function () {return 9;} };
-    _.alias(o, 'hi', 'ho');
-    equals(o.ho(), 9, 'can add an alias on another object');
-    _.alias(o, 'hi', 'there', 'sir');
-    ok(o.hi==o.sir, 'can add multiple aliases');
-  });
-  
-  
 });

underscore.js

@@ -470,31 +470,6 @@
     return obj;
   };
 
-  // Alias a method on an object to another name(s).
-  // If the first argument is NOT an object, then the object is assumed to 
-  // be underscore.
-  // The first string argument is the existing method name, any following
-  // strings will be aliased to that name.  
-  // Returns the object for chainability.
-  //
-  // Examples:
-  //
-  // Alias isEquals to isSame and eql on underscore:
-  //    _.alias('isEqual', 'isSame', 'eql');
-  //
-  // Alias `toString` to `to_s` on a given object: 
-  //    _.alias({}, 'toString', 'to_s')
-  //
-  // Implementation: explicitly cast arguments to array as calling mutating
-  // array methods on arguments object has strange behavior (at least in FF 3.6) 
-  _.alias = function () {
-    var args = _.toArray(arguments), 
-        obj = (typeof args[0] === 'string')?  _ : args.shift(),
-        fn = obj[args.shift()];
-    each(args, function (alias) {  obj[alias] = fn;  });
-    return obj;
-  };
-
   // Perform a deep comparison to check if two objects are equal.
   _.isEqual = function(a, b) {
     // Check object identity.
@@ -658,15 +633,15 @@
 
   // ------------------------------- Aliases ----------------------------------
 
-  _.alias('forEach', 'each').
+  _.each     = _.forEach;
-    alias('reduce', 'foldl', 'inject').
+  _.foldl    = _.inject       = _.reduce;
-    alias('reduceRight', 'foldr').
+  _.foldr    = _.reduceRight;
-    alias('filter', 'select').
+  _.select   = _.filter;
-    alias('every', 'all').
+  _.all      = _.every;
-    alias('some', 'any').
+  _.any      = _.some;
-    alias('first', 'head').
+  _.head     = _.first;
-    alias('rest', 'tail').
+  _.tail     = _.rest;
-    alias('functions', 'methods');
+  _.methods  = _.functions;
 
   // ------------------------ Setup the OOP Wrapper: --------------------------