fixed render JSX h to api composition v1x

[joaomede]

#11
The Problem: The latest version of Composition API removed the "createElement" import, now the method is located in context, in "ctx.root.$createElement", so in this Pull Request I removed the "autoImportH" function and added the function "insertDeclareCreateElement",

what does it do?

inserts "const h = ctx.root.$createElement" into the "setup" scope.

ex.:

import { defineComponent } from '@vue/composition-api'

export const ElementTest = defineComponent ({
   setup: (prop, ctx) => {
     // here
     const h = ctx.root.$createElement

     return () => {
       return (
         <div>
           <h2> test </h2>
         </div>
       )
     }
   }
})

[antfu]

@joaomede createElement is not removed, it renamed to h instead to align with Vue 3. A PR #12 for this is already made. Thanks.

[joaomede]

@antfu is true, i saw here that it is simply called "h" now, the cool thing is that context.root.$createElement also worked, now just wait for the fix to enter the release.