Bad syntax Highlighting in TS when using multiline union types

[tgroutars]

Does this issue occur when all extensions are disabled?: Yes/No

• VS Code Version: 1.95.3
• OS Version: MacOS 15.0.1

Steps to Reproduce:

Write the following in VSCode

let myObj:
    | {
          prop1: string
      }
    | {
          prop2: string
      }
function myFunc() {}

The syntax of function myFunc() {} and everything after it is broken.

I found that it happens only in this rare edge case. Some things that actually fix it:

1. Adding a semicolon

let myObj:
    | {
          prop1: string
      }
    | {
          prop2: string
      };
function myFunc() {}

2. Writing the union type on a single line

let myObj: { prop1: string } | { prop2: string }
function myFunc() {}

3. Adding a line break before the next line of code

let myObj:
    | {
          prop1: string
      }
    | {
          prop2: string
      }

function myFunc() {}

Bad highlighting:

Wanted highlighting:

[vs-code-engineering]

Thanks for creating this issue! It looks like you may be using an old version of VS Code, the latest stable release is 1.95.3. Please try upgrading to the latest version and checking whether this issue remains.

Happy Coding!

[RedCMD]

Add something like |(?=function\\s) to type-annotation should work

[tgroutars]

It's not just functions, anything that comes after it has bad syntax highlighting unfortunately