Update icon.vue

src/components/icon/icon.vue

@@ -1,5 +1,5 @@
 <template>
-    <i :class="classes" :style="styles" @click="$emit('click')"></i>
+    <i :class="classes" :style="styles" @click="handleClick"></i>
 </template>
 <script>
     const prefixCls = 'ivu-icon';
@@ -28,6 +28,11 @@
 
                 return style;
             }
+        },
+        methods: {
+            handleClick (event) {
+                this.$emit('click', event);
+            }
         }
     };
 </script>