Cleanup _.curry.

Former-commit-id: edcc8b2b4c67fa04d8c67e7b7fcdd071c4155e89

lodash.js

@@ -1445,6 +1445,7 @@
       var isBind = bitmask & 1,
           isBindKey = bitmask & 2,
           isCurry = bitmask & 4,
+          isPartial = bitmask & 8,
           isPartialRight = bitmask & 16;
 
       if (!isBindKey && !isFunction(func)) {
@@ -1458,10 +1459,10 @@
         if (isCurry && !(bindData[1] & 4)) {
           bindData[5] = arity;
         }
-        if (partialArgs) {
+        if (isPartial) {
           push.apply(bindData[2] || (bindData[2] = []), partialArgs);
         }
-        if (partialRightArgs) {
+        if (isPartialRight) {
           push.apply(bindData[3] || (bindData[3] = []), partialRightArgs);
         }
         bindData[1] |= bitmask;

test/test.js

@@ -679,6 +679,20 @@
       equal(curried(1, 2, 3), 6);
     });
 
+    test('should work with partial methods', function() {
+      function func(a, b, c) {
+        return a + b + c;
+      }
+
+      var curried = _.curry(func),
+          a = _.partial(curried, 1),
+          b = _.partialRight(a, 3),
+          c = _.partialRight(a(2), 3);
+
+      equal(b(2), 6);
+      equal(c(), 6);
+    });
+
     test('should not alter the `this` binding', function() {
       function func(a, b, c) {
         return this[a] + this[b] + this[c];