) (denoland#34464)

## Summary

Fixes the `Uncaught AssertionError: Assertion failed` raised by
`console.log` /
`Deno.inspect` when handed a Proxy whose `getOwnPropertyDescriptor` trap
throws,
e.g. (from denoland#24980):

```js
console.log(
  new Proxy({ x: 10 }, {
    getOwnPropertyDescriptor: () => { throw new Error("oops"); },
  }),
);
```

Before:

```
Uncaught AssertionError: Assertion failed
    at assert (ext:deno_web/01_console.js:…)
    at getKeys (ext:deno_web/01_console.js:…)
    …
```

After:

```
{ x: 10 }
```

## Background

`getKeys` previously asserted that any error from `Object.keys(value)`
was a
`ReferenceError` raised by accessing an unevaluated module-namespace
object,
and otherwise re-threw via `assert(false)` — i.e. surfaced as
`AssertionError: Assertion failed`.

denoland#34373 added proxy unwrapping in `formatValue` (when `showProxy` is
`false`,
Deno now inspects the proxy target instead of the proxy itself, matching
Node.js). That removes the common path that brought a throwing-trap
Proxy to
`getKeys`, but the assertion was still load-bearing for resilience:
anything
else that ever throws from `Object.keys` (or, before it,
`Object.getOwnProperty­Symbols`)
would crash inspect with a useless message.

This PR softens `getKeys` so unexpected failures degrade to a
less-detailed
but valid inspection instead of a crash:

- `Object.keys` → on throw, fall back to `Object.getOwnPropertyNames`,
then
  to an empty key list.
- `Object.getOwnPropertySymbols` → on throw, treat as no symbols.
- The enumerability filter (`propertyIsEnumerable`) is guarded too.

The now-unused `assert` / `AssertionError` internal helpers are removed.

## Tests

`tests/unit/console_test.ts` — extends the existing `inspectProxy` test
with
the exact repro from denoland#24980 (Proxy with a throwing
`getOwnPropertyDescriptor`).

Closes denoland#24980.
Closes denoland/orchid#277

Co-authored-by: divybot <[email protected]>
Co-authored-by: Divy Srivastava <[email protected]>