feat(types): update to Typescript 3.9 (#1106)

test-dts/tsx.test-d.tsx

@@ -1,13 +1,18 @@
 // TSX w/ defineComponent is tested in defineComponent.test-d.tsx
-
-import { expectError, expectType } from 'tsd'
-import { KeepAlive, Suspense, Fragment, Teleport } from '@vue/runtime-dom'
+import {
+  KeepAlive,
+  Suspense,
+  Fragment,
+  Teleport,
+  expectError,
+  expectType
+} from './index'
 
 expectType<JSX.Element>(<div />)
 expectType<JSX.Element>(<div id="foo" />)
 expectType<JSX.Element>(<input value="foo" />)
 
-// unknown prop
+// @ts-expect-error unknown prop
 expectError(<div foo="bar" />)
 
 // allow key/ref on arbitrary element
@@ -29,16 +34,21 @@ expectType<JSX.Element>(<Fragment key="1" />)
 
 expectType<JSX.Element>(<Teleport to="#foo" />)
 expectType<JSX.Element>(<Teleport to="#foo" key="1" />)
+
+// @ts-expect-error
 expectError(<Teleport />)
+// @ts-expect-error
 expectError(<Teleport to={1} />)
 
 // KeepAlive
 expectType<JSX.Element>(<KeepAlive include="foo" exclude={['a']} />)
 expectType<JSX.Element>(<KeepAlive key="1" />)
+// @ts-expect-error
 expectError(<KeepAlive include={123} />)
 
 // Suspense
 expectType<JSX.Element>(<Suspense />)
 expectType<JSX.Element>(<Suspense key="1" />)
 expectType<JSX.Element>(<Suspense onResolve={() => {}} onRecede={() => {}} />)
+// @ts-expect-error
 expectError(<Suspense onResolve={123} />)