CHANGES:
## Features/Changes
* Misc: update testsuite to OCaml 5.2
* Misc: CI uses opam.2.2 and no longer use sunset repo
* Misc: yojson is no longer optional
* Misc: reduce the diff with the wasm_of_ocaml fork
* Misc: finalize support for OCaml 5.3
* Compiler: speedup global_flow/global_deadcode pass on large bytecode
* Compiler: improved global dead code elimination (ocsigen/js_of_ocaml#2206)
* Compiler: speedup json parsing, relying on Yojson.Raw (ocsigen/js_of_ocaml#1640)
* Compiler: Decode sourcemap mappings only when necessary (ocsigen/js_of_ocaml#1664)
* Compiler: mark [TextEncoder] as reserved
* Compiler: add support for the Wasm backend in parts of the pipeline, in
prevision for the merge of wasm_of_ocaml
* Compiler: introduce a Targetint module
that follows the semantic of the backend (js or wasm)
* Compiler: warn on joo_global_object
* Compiler: revisit static env handling (ocsigen/js_of_ocaml#1708)
* Compiler: Emit index source_map to avoid changing mappings (ocsigen/js_of_ocaml#1714, ocsigen/js_of_ocaml#1715)
* Compiler: improved source map generation (ocsigen/js_of_ocaml#1716)
* Runtime: change Sys.os_type on windows (Cygwin -> Win32)
* Runtime: backtraces are really expensive, they need to be explicitly
requested at compile time (--enable with-js-error) or at startup (OCAMLRUNPARAM=b=1)
* Runtime: allow dynlink of precompiled js with separate compilation (ocsigen/js_of_ocaml#1676)
* Runtime: reimplement the runtime of weak and ephemeron (ocsigen/js_of_ocaml#1707)
* Lib: Modify Typed_array API for compatibility with WebAssembly
* Lib: add details element and toggle event (ocsigen/js_of_ocaml#1728)
* Toplevel: no longer set globals for toplevel initialization
* Runtime: precompute constants used in `caml_lxm_next` (ocsigen/js_of_ocaml#1730)
* Runtime: cleanup runtime
## Bug fixes
* Runtime: fix parsing of unsigned integers (0u2147483648) (ocsigen/js_of_ocaml#1633, ocsigen/js_of_ocaml#1666)
* Runtime: fix incorrect pos_in after unmarshalling
* Runtime: make float_of_string stricter (ocsigen/js_of_ocaml#1609)
* Toplevel: fix missing primitives with separate compilation
* Compiler: fix link of packed modules with separate compilation
* Compiler: Fixed the static evaluation of some equalities (ocsigen/js_of_ocaml#1659)
* Compiler: fix global analysis bug (subsumes ocsigen/js_of_ocaml#1556)