ts-expect-error comment expects more than one error

[jednano]

TypeScript Version: 3.9.1-rc

Search Terms:

ts-expect-error comment expects more than one error multiple lines

Code

// @ts-expect-error
(({ a: true } as const).a === false); // <-- compiles (as expected via comment)
(({ a: true } as const).a === false); // <-- compiles, expected an error though

(({ a: true } as const).a === false); // error (as I would expect)

(({ a: true } as const).a === false); // error (as I would expect)

Expected behavior:

I only expect // @ts-expect-error to ignore a single error at a time.

Actual behavior:

The // @ts-expect-error comment expected two errors spanning across two separate lines. The comment seems to take empty lines into account as a separator? Quite odd, seeing as code should ignore whitespace.

Work-around:

Add an empty line between the expected error line and the one that follows.

Playground Link:

https://www.typescriptlang.org/play/index.html?ts=4.0.0-dev.20200430#code/PTAEAEBcGcFoFMAeAHeBjSCBOWD2WAoACiIG9QBDALlEiwFd5QBfS6UNXAO2kgEoAdBVABeMaABmFADbR4fANzEylGnUYs2Hbr0HCxIyTLmKCy8tVoMmrCu049+Q0eKmz5S86qsbb9nU76rsYeBEA

Related Issues:

Couldn't find any.