Constant folding is not working inside `const enum`

```ts
const enum First {
A = 1,
B = 2,
C = 3
}

const multiplier = 5

const enum Second {
D = First.A * multiplier,
E = First.B * multiplier,
F = First.C * multiplier
}

console.log(Second.E + Second.F)
```

`bunx esbuild --minify 1.ts`

### Expected output

`console.log(25);`

### Actual output

`"use strict";(()=>{var m=5,u=(l=>(l[l.D=1*m]="D",l[l.E=2*m]="E",l[l.F=3*m]="F",l))(u||{});console.log(u.E+u.F);})();`

Start by running the reported `bunx esbuild --minify 1.ts` reproduction and compare its output with the expected `console.log(25);`. Trace the TypeScript `const enum` handling and constant-folding path; done means the example is folded to the expected output without changing unrelated enum behavior.

Written by the indexing model from the issue text.