wasm: support js string constant esm import

[guybedford]

This adds support for the new wasm:js/string-constants import for the ESM integration as recently landed per the latest spec in WebAssembly/esm-integration#115.

With this it is now possible to import constant JS strings in both the instance and source Wasm phases.

Example usage:

(module
  (import "wasm:js-string" "cast"
    (func $cast (param externref) (result (ref extern))))
  (import "wasm:js-string" "concat"
    (func $concat (param externref externref) (result (ref extern))))
  (import "wasm:js/string-constants" "Hello "
    (global $hello (ref extern)))

  (func (export "greet") (param $name externref) (result externref)
    (call $concat
      (global.get $hello)
      (call $cast (local.get $name))))
)

[nodejs-github-bot]

Review requested:

• @nodejs/loaders

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.65%. Comparing base (9ff27fd) to head (98a6cb3).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #62198      +/-   ##
==========================================
+ Coverage   89.63%   89.65%   +0.01%     
==========================================
  Files         676      676              
  Lines      206578   206579       +1     
  Branches    39555    39562       +7     
==========================================
+ Hits       185171   185206      +35     
+ Misses      13535    13486      -49     
- Partials     7872     7887      +15     

Files with missing lines	Coverage Δ
lib/internal/modules/esm/translators.js	97.66% <100.00%> (+<0.01%)	⬆️

... and 34 files with indirect coverage changes

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