wip(compiler): adjust statement positions

packages/compiler-core/__tests__/__snapshots__/codegen.spec.ts.snap

@@ -71,10 +71,10 @@ return function render() {
 `;
 
 exports[`compiler: codegen function mode preamble 1`] = `
-"const { helperOne, helperTwo } = Vue
-
+"const _Vue = Vue
 return function render() {
   with (this) {
+    const { helperOne, helperTwo } = _Vue
     return null
   }
 }"
@@ -147,10 +147,10 @@ return function render() {
 exports[`compiler: codegen statements 1`] = `
 "
 return function render() {
-  const a = 1
-  const b = 2
-  
   with (this) {
+    const a = 1
+    const b = 2
+    
     return null
   }
 }"

packages/compiler-core/__tests__/codegen.spec.ts

@@ -55,7 +55,8 @@ describe('compiler: codegen', () => {
       imports: [`helperOne`, `helperTwo`]
     })
     const { code } = generate(root, { mode: 'function' })
-    expect(code).toMatch(`const { helperOne, helperTwo } = Vue`)
+    expect(code).toMatch(`const _Vue = Vue`)
+    expect(code).toMatch(`const { helperOne, helperTwo } = _Vue`)
     expect(code).toMatchSnapshot()
   })
 

packages/compiler-core/__tests__/compile.spec.ts

@@ -9,10 +9,10 @@ test('basic source map support', async () => {
     filename: `foo.vue`
   })
   expect(code).toMatch(
-    `const { toString } = Vue
-
+    `const _Vue = Vue
 return function render() {
   with (this) {
+    const { toString } = _Vue
     return [
       "hello ",
       toString(world)