Emit bug: default export is missing when exporting type+named+default

[robpalme]

Bug Report

When using a single identifier to export three things (a type, a named export, and a default export) the default export is dropped from the emitted JS.

🔎 Search Terms

"default export" skipped dropped elided omitted forgotten "JS emit" type "named export" "JS+types"

🕗 Version & Regression Information

• This is the behavior in every version I tried

⏯ Playground Link

Playground link with relevant code

💻 Code

type X = number;
export const X = 1;
export default X;

The problem is equally replicable with interface and object types.

🙁 Actual behavior

JS semantics are not preserved in the JS emit:

export const X = 1;

🙂 Expected behavior

export const X = 1;
export default X;

Credit

This bug was discovered by @ollupac