Bug 1480198 [wpt PR 13495] - [Gecko Bug 1480198] Check for allowed patterns deeper in LSAN stack., a=testonly

Automatic update from web-platform-testsCheck for allowed patterns deeper in LSAN stack.

Add the property lsan-max-stack-depth to enable configuring how many
stack frames we allow LSANLeaks to record.

Differential Revision: https://phabricator.services.mozilla.com/D8192

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1480198
gecko-commit: a0702430e839a7e0b1ea1dc78927d38ede1a007a
gecko-integration-branch: central
gecko-reviewers: jgraham

--
Fix lint.
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wpt-commits: 02e9e6a6ecb6693f6eea79ec21f66a577d0a6e12, 617f510a05620b785bf6d6e178ff41b0dfb8960e
wpt-pr: 13495

testing/web-platform/tests/tools/wptrunner/wptrunner/tests/test_wpttest.py

@@ -99,7 +99,7 @@ def test_metadata_lsan_stack_depth():
     test = tests[1][2].pop()
     test_obj = wpttest.from_manifest(test, [], test_metadata.get_test(test.id))
 
-    assert test_obj.lsan_max_stack_depth == None
+    assert test_obj.lsan_max_stack_depth is None
 
     test_metadata = manifestexpected.static.compile(BytesIO(test_0),
                                                     {},