Remove "Collections" method _.forEach dependency from "Arrays" method _.intersection.

Former-commit-id: 83197c7ac47654c6fc2d2f37df8ff77d4adb9096

build.js

@@ -95,7 +95,7 @@
     'identity': [],
     'indexOf': ['sortedIndex'],
     'initial': [],
-    'intersection': ['forEach', 'indexOf'],
+    'intersection': ['indexOf'],
     'invert': ['forOwn'],
     'invoke': ['forEach'],
     'isArguments': [],
@@ -1441,19 +1441,23 @@
           '  function intersection(array) {',
           '    var args = arguments,',
           '        argsLength = args.length,',
+          '        index = -1,',
+          '        length = array ? array.length : 0,',
           '        result = [];',
           '',
-          '    forEach(array, function(value) {',
+          '    outer:',
+          '    while (++index < length) {',
+          '      var value = array[index];',
           '      if (indexOf(result, value) < 0) {',
-          '        var length = argsLength;',
-          '        while (--length) {',
-          '          if (indexOf(args[length], value) < 0) {',
-          '            return;',
+          '        var argsIndex = argsLength;',
+          '        while (--argsIndex) {',
+          '          if (indexOf(args[argsIndex], value) < 0) {',
+          '            continue outer;',
           '          }',
           '        }',
           '        result.push(value);',
           '      }',
-          '    });',
+          '    }',
           '    return result;',
           '  }'
         ].join('\n'));