Fix hang on block comment after an expression in JavaScript

CHANGELOG.md

@@ -26,6 +26,7 @@
 - Syntax highlighting for Python files using uv as script runner in shebang #3689 (@janlarres)
 
 ## Bugfixes
+- Fix `bat` hanging forever on JavaScript (and Svelte) code where an expression is followed by a block comment, e.g. `a /* x */`. Closes #4080, see #XXXX (@NavpreetSSidhu)
 - Fix the first line of UTF-16BE input swallowing the second line, which broke line numbers, `--line-range` and highlighting, see #XXXX (@cindykrafft)
 - Exit quietly with status 0 instead of panicking when stdout is closed early (broken pipe) on auxiliary output paths such as `--completion`, `--config-file`, `--diagnostic`, `--generate-config-file`, `--set-terminal-title` and `cache --build`/`--clear`, matching the main output path since #232, closes #4034, see #4035 (@Mathjk)
 - Track strikethrough (SGR 9 / 29) in the ANSI style tracker so it is re-emitted like bold, dim, italic, and underline, and is no longer dropped after the first highlighted token when displaying ANSI input with syntax highlighting, see #4015 (@mikehasa)

assets/patches/JavaScript.sublime-syntax.patch

@@ -12,3 +12,13 @@ index 05a4fed6..78a7bf55 100644
  scope: source.js
  variables:
    bin_digit: '[01_]'
+@@ -93,7 +93,8 @@ variables:
+       (?! \+\+ | -- )
+       (?=
+         != |
+-        [-+*/%><=&|^\[(;,.:?] |
++        [-+*%><=&|^\[(;,.:?] |
++        /(?!\*) |
+         (?:in|instanceof){{identifier_break}}
+       )
+     ))

tests/syntax-tests/highlighted/Svelte/comment_after_expression.svelte

@@ -0,0 +1,5 @@
+{a
+  /* comment */
+}
+
+{a /* comment */}

tests/syntax-tests/source/Svelte/comment_after_expression.svelte

@@ -0,0 +1,5 @@
+{a
+  /* comment */
+}
+
+{a /* comment */}