[foozzie] Use stronger suppression for crbug.com/681806

tools/foozzie/v8_suppressions.py

 # Copyright 2016 the V8 project authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """
 Suppressions for V8 correctness fuzzer failures.
 
 We support three types of suppressions:
 1. Ignore test case by pattern.
 Map a regular expression to a bug entry. A new failure will be reported
@@ skipping 77 matching lines @@
 # Bug is preferred to be a crbug.com/XYZ, but can be any short distinguishable
 # label.
 # Regular expressions are assumed to be compiled. We use regexp.search.
 IGNORE_OUTPUT = {
   '': {
     'crbug.com/664068':
         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),
+        re.compile(r'WebAssembly\.Instance', re.S),
     'crbug.com/681088':
         re.compile(r'TypeError: Cannot read property \w+ of undefined', re.S),
   },
   'validate_asm': {
     'validate_asm':
         re.compile(r'TypeError'),
   },
 }
 
 # Lines matching any of the following regular expressions will be ignored
@@ skipping 223 matching lines @@
     bug = check(IGNORE_OUTPUT.get(arch, {}))
     if bug:
       return bug
     bug = check(IGNORE_OUTPUT.get(config, {}))
     if bug:
       return bug
     bug = check(IGNORE_OUTPUT.get('%s,%s' % (arch, config), {}))
     if bug:
       return bug
     return None