[foozzie] Suppress crbug.com/681806

BUG=chromium:681806
NOTRY=true
TBR=titzer@chromium.org,bradnelson@chromium.org

Review-Url: https://codereview.chromium.org/2638913002
Cr-Commit-Position: refs/heads/master@{#42410}

tools/foozzie/v8_suppressions.py

@@ -86,6 +86,8 @@ IGNORE_OUTPUT = {
         re.compile(r'RangeError', re.S),
     'crbug.com/667678':
         re.compile(r'\[native code\]', re.S),
+    'crbug.com/681806':
+        re.compile(r'\[object WebAssembly\.Instance\]', re.S),
   },
   'validate_asm': {
     'validate_asm':