Adding URL related Taint Operations

[tmbrbr]

Adding taint operations for the following operations:

• URL.parse
• URLSearchParams.get
• URLSearchParams.getAll

So now the operations will show up in functions like this one:

function load() {
  let url = URL.parse(location.toString());
  let params = url.searchParams;
  let p1 = params.get("p1");
  let p2 = params.get("p2");
  let d = document.getElementById("target");
  d.innerHTML = p1+" "+p2;
}

[leeN]

LGTM

[leeN]

Looking at the CI, there seems to be a failure in taint/escape.js

I.e., the following log excerpt:

2025-11-26T13:07:54.3845748Z REFTEST TEST-LOAD | file:///home/runner/work/project-foxhound/project-foxhound/obj-tf-release/dist/test-stage/jsreftest/tests/js/src/tests/jsreftest.html?test=non262/taint/escape.js | 1892 / 52410 (3%)
2025-11-26T13:07:54.4044337Z !!! Tainted flow into document.write from location.search !!!
2025-11-26T13:07:54.4048173Z JavaScript warning: file:///home/runner/work/project-foxhound/project-foxhound/obj-tf-release/dist/test-stage/jsreftest/tests/js/src/tests/browser.js, line 526: Tainted flow from location.search into document.write!
2025-11-26T13:07:54.4050587Z !!! Tainted flow into document.write from location.search !!!
2025-11-26T13:07:54.4057351Z JavaScript warning: file:///home/runner/work/project-foxhound/project-foxhound/obj-tf-release/dist/test-stage/jsreftest/tests/js/src/tests/browser.js, line 526: Tainted flow from location.search into document.write!
2025-11-26T13:07:54.4060089Z !!! Tainted flow into document.write from location.search !!!
2025-11-26T13:07:54.4064585Z JavaScript warning: file:///home/runner/work/project-foxhound/project-foxhound/obj-tf-release/dist/test-stage/jsreftest/tests/js/src/tests/browser.js, line 526: Tainted flow from location.search into document.write!
2025-11-26T13:07:54.4066039Z !!! Tainted flow into document.write from location.search !!!
2025-11-26T13:07:54.4067768Z JavaScript warning: file:///home/runner/work/project-foxhound/project-foxhound/obj-tf-release/dist/test-stage/jsreftest/tests/js/src/tests/browser.js, line 526: Tainted flow from location.search into document.write!
2025-11-26T13:07:54.4069410Z !!! Tainted flow into document.write from location.search !!!
2025-11-26T13:07:54.4074823Z JavaScript warning: file:///home/runner/work/project-foxhound/project-foxhound/obj-tf-release/dist/test-stage/jsreftest/tests/js/src/tests/browser.js, line 526: Tainted flow from location.search into document.write!
2025-11-26T13:07:56.3671048Z A content process crashed and MOZ_CRASHREPORTER_SHUTDOWN is set, shutting down
2025-11-26T13:07:56.4034902Z 1764162476402 Marionette TRACE Received observer notification quit-application
2025-11-26T13:07:56.4036109Z 1764162476403 Marionette INFO Stopped listening on port 2828
2025-11-26T13:07:56.4057951Z 1764162476405 Marionette DEBUG Marionette stopped listening
2025-11-26T13:07:56.4162102Z [Parent 132484, IPC I/O Parent] WARNING: process 132726 exited on signal 11: file /home/runner/work/project-foxhound/project-foxhound/ipc/chromium/src/chrome/common/process_watcher_posix_sigchld.cc:132
2025-11-26T13:07:56.4201543Z !!! error running onStopped callback: TypeError: callback is not a function
2025-11-26T13:07:56.5635153Z REFTEST TEST-UNEXPECTED-FAIL | obj-tf-release/dist/test-stage/jsreftest/tests/js/src/tests/non262/taint/escape.js | application terminated with exit code 245`

[leeN]

However, that seems unrelated to this change, so merging.