Fix: fix script-indent to prevent removing <script> tag (fixes #367) (#374)

Author: mysticatea

Diff for: lib/utils/indent-common.js

@@ -631,8 +631,16 @@ module.exports.defineVisitor = function create (context, tokenStore, defaultOpti
    */
   function validateCore (token, expectedIndent, optionalExpectedIndent) {
     const line = token.loc.start.line
-    const actualIndent = token.loc.start.column
     const indentText = getIndentText(token)
+
+    // If there is no line terminator after the `<script>` start tag,
+    // `indentText` contains non-whitespace characters.
+    // In that case, do nothing in order to prevent removing the `<script>` tag.
+    if (indentText.trim() !== '') {
+      return
+    }
+
+    const actualIndent = token.loc.start.column
     const unit = (options.indentChar === '\t' ? 'tab' : 'space')
 
     for (let i = 0; i < indentText.length; ++i) {

Diff for: tests/fixtures/script-indent/no-linebreak-script.vue

@@ -0,0 +1,3 @@
+<!--{}-->
+<script>var a
+</script>