fix(typescript): use the first error when both failed

[ikatyang]

Fixes #4946

• I’ve added tests to confirm my change works.
• (If changing the API or CLI) I’ve documented the changes I’ve made (in the docs/ directory)
• I’ve read the contributing guidelines.

[duailibe]

@ikatyang Do you know what's the problem of always using "with JSX" mode?

[j-f1]

You can’t use type parameters with arrow functions:

const foo = <T>(x: T): T => x

[duailibe]

🤦‍♂️