Update: upgrade vue-eslint-parser (fixes #36, fixes #56, fixes #96)

[mysticatea]

Thank you for waiting!
I have almost done to rewrite vue-eslint-parser. ✨

• This PR should fix three bugs: fixes no-invalid-template-root fails on self-closing root #36, fixes Invalid root error on Table root #56, fixes vue/no-parsing-error: comma-separated methods #96.
• This PR enhances no-parsing-errors rule. It allows us to catch syntax errors of HTML. Those are opt-in for now since enhancement which increases errors is a breaking change.
• There are some changes to internal API.
  • I changed AST of <template> a bit. Notable changes are below:
    • We can get element names with element.name property now. It was element.startTag.id.name before.
    • We can get the namespace of elements with element.namespace. The value of namespaces are defined in there.
    • VOnExpression node is added in order to handle vue/no-parsing-error: comma-separated methods #96 correctly.
  • The spec of AST is vue-eslint-parser/docs/ast.md.
  • The type definition of AST is vue-eslint-parser/src/ast/nodes.ts.

This PR has breaking changes in internal APIs, but the rule behaviors are keeping as is, so I think fine as semver-minor.

Though I have many tests (12499 passing 😄) to parse HTML, I guess some bugs remain.

[armano2]

!options[error.code] this is not covered in tests, you should consider adding test with errors but disable them.

[armano2]

also you are missing

{
      filename: 'test.vue',
      code: `<template v-for="x of list">
        <slot name="item" />
      </template>`
    }

[mysticatea]

@armano2 Thank you! I added more tests.