fix(reactivity): shallowReactive collection to not-readonly (#1212)

packages/reactivity/__tests__/reactive.spec.ts

@@ -1,11 +1,5 @@
 import { ref, isRef } from '../src/ref'
-import {
-  reactive,
-  isReactive,
-  toRaw,
-  markRaw,
-  shallowReactive
-} from '../src/reactive'
+import { reactive, isReactive, toRaw, markRaw } from '../src/reactive'
 import { mockWarn } from '@vue/shared'
 import { computed } from '../src/computed'
 
@@ -175,44 +169,4 @@ describe('reactivity/reactive', () => {
     })
     expect(isReactive(obj.foo)).toBe(false)
   })
-
-  describe('shallowReactive', () => {
-    test('should not make non-reactive properties reactive', () => {
-      const props = shallowReactive({ n: { foo: 1 } })
-      expect(isReactive(props.n)).toBe(false)
-    })
-
-    test('should keep reactive properties reactive', () => {
-      const props: any = shallowReactive({ n: reactive({ foo: 1 }) })
-      props.n = reactive({ foo: 2 })
-      expect(isReactive(props.n)).toBe(true)
-    })
-
-    test('should not observe when iterating', () => {
-      const shallowSet = shallowReactive(new Set())
-      const a = {}
-      shallowSet.add(a)
-
-      const spreadA = [...shallowSet][0]
-      expect(isReactive(spreadA)).toBe(false)
-    })
-
-    test('should not get reactive entry', () => {
-      const shallowMap = shallowReactive(new Map())
-      const a = {}
-      const key = 'a'
-
-      shallowMap.set(key, a)
-
-      expect(isReactive(shallowMap.get(key))).toBe(false)
-    })
-
-    test('should not get reactive on foreach', () => {
-      const shallowSet = shallowReactive(new Set())
-      const a = {}
-      shallowSet.add(a)
-
-      shallowSet.forEach(x => expect(isReactive(x)).toBe(false))
-    })
-  })
 })