Add BridgeJS playground

This suppresses warnings from swift-syntax

BridgeJS: Move intrinsic declarations to JavaScriptKit under SPI

To mark it `throws`

BridgeJS: Add `throws(JSException)` to imported methods

Use of class type for `SwiftRuntime` in `instantiate.d.ts` makes it
difficult to union types of two `instantiate` variants.

PackageToJS: Use non-class type for SwiftRuntime in instantiate.d.ts

emsdk includes `node` directory but the `which` function returned it
as a valid executable.

Fix `which` not to return directories

…stry

In FinalizationRegistry mode, the `swjs_free_host_function` should
be called with the Swift heap object ID, not the JS closure object ID.
The wrong argument was causing:
- Swift closures to be leaked, because FinalizationRegistry attempted
  to release a JS object ID that was never registered as a Swift closure.
- Unintended deallocation of unrelated closures when a reused JS object ID
  happened to match a valid Swift closure ID by coincidence. This
  eventually led to crashes with `The JSClosure has been already released by Swift side.`

When generating `@_extern(wasm)` function declarations in the
BridgeJS plugin, we now need to ensure that they are placed at the
top level of the module, rather than nested within other declarations
because of the restrictions of the main branch Swift compiler.

…erated file

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

BridgeJS: Adjust for the latest top-level requirement for `@_extern(wasm)`

BridgeJS: Extend snapshot test setup for exports <-> global this by including mixed module test case

…mespace

BridgeJS: exposeToGlobal configuration option to control declare global declaration

…Executor

…based types

… reversed order and intermediate properties

…rameters

BridgeJS: Fix ordering issue with multiple stack based parameters

* PackageToJS: Make some options optional in option setup functions

* Examples: Add NodeJS example

* Documentation: Add Package output structure article

* Apply suggestions from code review

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Revert browser.d.ts API change

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

…lt parameter

BridgeJS: Enable struct as default parameter and enable default parameters in struct init / methods

BridgeJS: Struct and struct vs classes benchmarks

[NFC] BridgeJS: Codegen code organisation and minor cleanups