fix(compiler-sfc): should extract comment for import or type declarations (#2107)

fix #2102

packages/compiler-sfc/__tests__/__snapshots__/compileScript.spec.ts.snap

@@ -373,6 +373,19 @@ export function setup() {
 
       x()
       
+return {  }
+}
+
+export default { setup }"
+`;
+
+exports[`SFC compile <script setup> should extract comment for import or type declarations 1`] = `
+"import a from 'a' // comment
+import b from 'b'
+
+export function setup() {
+
+
 return {  }
 }