update examples with new computed shorthand

Author: yyx990803

examples/firebase/app.js

@@ -32,16 +32,14 @@ var app = new Vue({
         }
     },
     computed: {
-        isValid: {
-            $get: function () {
-                var valid = true
-                for (var key in this.validation) {
-                    if (!this.validation[key]) {
-                        valid = false
-                    }
+        isValid: function () {
+            var valid = true
+            for (var key in this.validation) {
+                if (!this.validation[key]) {
+                    valid = false
                 }
-                return valid
             }
+            return valid
         }
     },
     methods: {

test/functional/fixtures/nested-props.html

@@ -35,15 +35,11 @@ <h3>Computed property that concats the two: <span v-text="d"></span></h3>
                     }
                 },
                 computed: {
-                    d: {
-                        $get: function () {
-                            return this.msg + (this.a.b.c || '') + (this.a.c || '')
-                        }
+                    d: function () {
+                        return this.msg + (this.a.b.c || '') + (this.a.c || '')
                     },
-                    sum: {
-                        $get: function () {
-                            return this.hidden.a + this.hidden.b
-                        }
+                    sum: function () {
+                        return this.hidden.a + this.hidden.b
                     }
                 },
                 methods: {

test/functional/fixtures/share-data.html

@@ -44,10 +44,8 @@
                     shared: shared
                 },
                 computed: {
-                    source: {
-                        $get: function () {
-                            return JSON.stringify(this.shared)
-                        }
+                    source: function () {
+                        return JSON.stringify(this.shared)
                     }
                 }
             })

test/functional/fixtures/validation.html

@@ -45,16 +45,14 @@
                     }
                 },
                 computed: {
-                    isValid: {
-                        $get: function () {
-                            var valid = true
-                            for (var key in this.validation) {
-                                if (!this.validation[key]) {
-                                    valid = false
-                                }
+                    isValid: function () {
+                        var valid = true
+                        for (var key in this.validation) {
+                            if (!this.validation[key]) {
+                                valid = false
                             }
-                            return valid
                         }
+                        return valid
                     }
                 },
                 methods: {