* gnu/packages/web (wabt): New variable.
* gnu/packages/diffoscope (diffoscope)[native-inputs]: Add wabt for tests.
[arguments]: Add phase patching wabt into known tools.
* gnu/packages/diffoscope (diffoscope): Update to 125.
[arguments] Adjust remove-ocaml-test to selectively disable a single test.
Add skip-elf-tests to disable a new failing test.
[native-inputs] Add ocaml for tests.