Use more readable attributes on `<recycle-list>`

[Hanks10100]

Syntax

Change the compiler to support the new syntax.

• Use for instead of the list-data, alias and index.
• Use switch instead of the template-key.
• Use case instead of the template-type.

Examples

Before:

<recycle-list :list-data="longList" template-key="cellType" alias="item" index="i">
  <cell-slot template-type="A"> ... </cell-slot>
  <cell-slot template-type="B"> ... </cell-slot>
</recycle-list>

After:

<recycle-list for="(item, i) in longList" switch="cellType">
  <cell-slot case="A"> ... </cell-slot>
  <cell-slot case="B"> ... </cell-slot>
</recycle-list>

The data of longList still should be binding with the <recycle-list>.

[yyx990803]

done in https://github.com/vuejs/vue/commit/7cc0b559e9e57fcb3baeae5d8d4c8964aa335b5e