fix: component-name-in-template-casing rule

Author: horitaka

Diff for: lib/rules/component-name-in-template-casing.js

@@ -93,7 +93,8 @@ module.exports = {
       if (
         (!utils.isHtmlElementNode(node) && !utils.isSvgElementNode(node)) ||
         utils.isHtmlWellKnownElementName(node.rawName) ||
-        utils.isSvgWellKnownElementName(node.rawName)
+        utils.isSvgWellKnownElementName(node.rawName) ||
+        utils.isBuiltInComponentName(node.rawName)
       ) {
         return false
       }

Diff for: lib/utils/vue2-builtin-components.js

@@ -8,5 +8,7 @@ module.exports = [
   'transition-group',
   'TransitionGroup',
   'keep-alive',
-  'KeepAlive'
+  'KeepAlive',
+  'client-only',
+  'ClientOnly'
 ]

Diff for: tests/lib/rules/component-name-in-template-casing.js

@@ -159,7 +159,8 @@ tester.run('component-name-in-template-casing', rule, {
           <client-only />
           <keep-alive />
         </template>
-      `
+      `,
+      options: ['PascalCase', { registeredComponentsOnly: false }]
     },
 
     {
@@ -811,35 +812,6 @@ tester.run('component-name-in-template-casing', rule, {
         'Component name "FooBar_Baz-qux" is not kebab-case.'
       ]
     },
-    {
-      // built-in components (behave the same way as other components)
-      code: `
-        <template>
-          <component />
-          <suspense />
-          <teleport />
-          <client-only />
-          <keep-alive />
-        </template>
-      `,
-      output: `
-        <template>
-          <Component />
-          <Suspense />
-          <Teleport />
-          <ClientOnly />
-          <KeepAlive />
-        </template>
-      `,
-      options: ['PascalCase', { registeredComponentsOnly: false }],
-      errors: [
-        'Component name "component" is not PascalCase.',
-        'Component name "suspense" is not PascalCase.',
-        'Component name "teleport" is not PascalCase.',
-        'Component name "client-only" is not PascalCase.',
-        'Component name "keep-alive" is not PascalCase.'
-      ]
-    },
     {
       code: `
         <template>