[wasm] Skip tests which currently fail on stress variant

TBR=titzer@chromium.org

Bug: v8:7845
Change-Id: I9670e629ffbb430addb579d55a3e07ed3c9ccbda
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/1097483Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53678}

test/wasm-spec-tests/wasm-spec-tests.status

@@ -43,4 +43,10 @@
   'tests/f64': [SKIP],
 }],  # 'arch == s390 or arch == s390x'
 
+['variant == stress', {
+  # TODO(v8:7845): Some spec tests currently fail with OOM. Reenable after fixing.
+  'tests/f32_cmp': [SKIP],
+  'tests/f64_cmp': [SKIP],
+}],  # variant == stress
+
 ]