Fix typo in test-heap/NoWeakHashTableLeakWithIncrementalMarking
Fix typo in test-heap/NoWeakHashTableLeakWithIncrementalMarking

NOTRY=true
TBR=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/1130123002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#28282}

UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh