fix(compiler-sfc): v-bind using // to comment will still compile

[eavan5]

When I use scss, if I write v-bind and comment it out, the v-bind line of css is still compiled as a css variable

Here is a default project I created using "@vue/cli 4.5.15"

<template>
  <div id="nav">
    <router-link to="/">Home</router-link>|
    <router-link to="/about">About</router-link>
  </div>
  <router-view />
</template>

<script setup>
const color =  "yellow"
</script>

<style lang="scss">
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
}

#nav {
  padding: 30px;
  // background-color: v-bind(color); 

  a {
    font-weight: bold;
    color: #2c3e50;

    &.router-link-exact-active {
      color: #42b983;
    }
  }
}
</style>

The line is actually commented out by css, but the v-bind variables are still compiled into the styles of the nav tag

<div id="nav" style="--7ba5bd90-color:yellow;">
  ... 
</div>

Comments about sass

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[haoqunjiang]

/ecosystem-ci run

[vue-bot]

📝 Ran ecosystem CI: Open

suite	result
nuxt	❌ failure
pinia	❌ failure
router	❌ failure
test-utils	❌ failure
vite-plugin-vue	❌ failure
vitepress	❌ failure

[sxzz]

/ecosystem-ci run

[vue-bot]

📝 Ran ecosystem CI: Open

suite	result
nuxt	❌ failure
pinia	✅ success
quasar	❌ failure
router	❌ failure
test-utils	❌ failure
vant	✅ success
vite-plugin-vue	✅ success
vitepress	❌ failure
vue-macros	❌ failure
vuetify	✅ success
vueuse	✅ success
vue-simple-compiler	✅ success