wasm webkit_tests failing on 3 builders

Starting earlier today both fast/wasm/wasm-limits-test.html and virtual/enable_wasm/http/tests/wasm/wasm_response_apis.html started crashing on WebKit Linux Trusty (dbg), WebKit Mac10.11 (dbg) and WebKit Win7 (dbg):


https://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=virtual%2Fenable_wasm%2Fhttp%2Ftests%2Fwasm%2Fwasm_response_apis.html&testType=webkit_tests

https://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=fast%2Fwasm%2Fwasm-limits-test.html&testType=webkit_tests


Culprit / owner is not clear > for Blink triage


Builders failed on: 
- WebKit Linux Trusty (dbg): 
  https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Trusty%20%28dbg%29
- WebKit Mac10.11 (dbg): 
  https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Mac10.11%20%28dbg%29

webkit_tests failing on chromium.webkit/WebKit Win7 (dbg)

Builders failed on: 
- WebKit Win7 (dbg): 
  https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Win7%20%28dbg%29
 

wasm webkit_tests failing on 3 builders

Starting earlier today both fast/wasm/wasm-limits-test.html and virtual/enable_wasm/http/tests/wasm/wasm_response_apis.html started crashing on WebKit Linux Trusty (dbg), WebKit Mac10.11 (dbg) and WebKit Win7 (dbg):


https://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=virtual%2Fenable_wasm%2Fhttp%2Ftests%2Fwasm%2Fwasm_response_apis.html&testType=webkit_tests

https://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=fast%2Fwasm%2Fwasm-limits-test.html&testType=webkit_tests

Relevant Log Snippets:
0:12:41.421 7775 worker/0 fast/wasm/wasm-limits-test.html crashed, (stderr lines):
00:12:41.421 7775   
00:12:41.421 7775   
00:12:41.421 7775   #
00:12:41.421 7775   # Fatal error in ../../v8/src/api.cc, line 217
00:12:41.421 7775   # Check failed: handle_scope_implementer->GetMicrotasksScopeDepth() || !handle_scope_implementer->DebugMicrotasksScopeDepthIsZero().
00:12:41.421 7775   #
00:12:41.421 7775   #0 0x7f080e72cb7b base::debug::StackTrace::StackTrace()
00:12:41.421 7775   #1 0x7f080e72b87c base::debug::StackTrace::StackTrace()
00:12:41.421 7775   #2 0x7f0808fb1347 gin::(anonymous namespace)::PrintStackTrace()
00:12:41.422 7775   #3 0x7f07faaef63c V8_Fatal
00:12:41.422 7775   #4 0x7f08082a3a21 v8::(anonymous namespace)::CallDepthScope<>::~CallDepthScope()
00:12:41.422 7775   #5 0x7f08082c76e5 v8::Function::Call()
00:12:41.422 7775   #6 0x7f0808b84aab v8::(anonymous namespace)::WebAssemblyInstantiate()
00:12:41.422 7775   #7 0x7f0808292043 v8::internal::FunctionCallbackArguments::Call()
00:12:41.422 7775   #8 0x7f080839780f v8::internal::(anonymous namespace)::HandleApiCallHelper<>()
00:12:41.422 7775   #9 0x7f08083960c7 v8::internal::Builtin_Impl_HandleApiCall()
00:12:41.422 7775   #10 0x05c478d84264 <unknown>
00:12:41.422 7775   [20969:20998:0412/001240.942059:7336956506:WARNING:crash_handler_host_linux.cc(325)] Could not translate tid, attempt = 1 retry ...
00:12:41.427 7691 [44483/54642] fast/wasm/wasm-limits-test.html failed unexpectedly (renderer crashed)
00:12:41.422 7775 worker/0 killing primary driver
00:12:41.422 7775 worker/0 killing secondary driver
00:12:41.422 7775 worker/0 fast/wasm/wasm-limits-test.html failed:
00:12:41.422 7775 worker/0  renderer crashed


00:02:11.908 7775 worker/0 virtual/enable_wasm/http/tests/wasm/wasm_response_apis.html crashed, (stderr lines):
00:02:11.908 7775   
00:02:11.908 7775   
00:02:11.908 7775   #
00:02:11.908 7775   # Fatal error in ../../v8/src/api.cc, line 217
00:02:11.908 7775   # Check failed: handle_scope_implementer->GetMicrotasksScopeDepth() || !handle_scope_implementer->DebugMicrotasksScopeDepthIsZero().
00:02:11.908 7775   #
00:02:11.908 7775   #0 0x7feef1f7db7b base::debug::StackTrace::StackTrace()
00:02:11.908 7775   #1 0x7feef1f7c87c base::debug::StackTrace::StackTrace()
00:02:11.908 7775   #2 0x7feeec802347 gin::(anonymous namespace)::PrintStackTrace()
00:02:11.908 7775   #3 0x7feede34063c V8_Fatal
00:02:11.908 7775   #4 0x7feeebaf4a21 v8::(anonymous namespace)::CallDepthScope<>::~CallDepthScope()
00:02:11.908 7775   #5 0x7feeebb186e5 v8::Function::Call()
00:02:11.908 7775   #6 0x7feeec3d6350 v8::(anonymous namespace)::WebAssemblyInstance()
00:02:11.908 7775   #7 0x7feeebae3043 v8::internal::FunctionCallbackArguments::Call()
00:02:11.908 7775   #8 0x7feeebbe7daa v8::internal::(anonymous namespace)::HandleApiCallHelper<>()
00:02:11.908 7775   #9 0x7feeebbe7060 v8::internal::Builtin_Impl_HandleApiCall()
00:02:11.908 7775   #10 0x275e5f204264 <unknown>
00:02:11.908 7775   [20311:20357:0412/000211.477853:6707492299:WARNING:crash_handler_host_linux.cc(325)] Could not translate tid, attempt = 1 retry ...
00:02:11.911 7691 [38224/54642] virtual/enable_wasm/http/tests/wasm/wasm_response_apis.html failed unexpectedly (renderer crashed)
00:02:11.909 7775 worker/0 killing primary driver
00:02:11.915 7775 worker/0 killing secondary driver
00:02:11.915 7775 worker/0 virtual/enable_wasm/http/tests/wasm/wasm_response_apis.html failed:
00:02:11.915 7775 worker/0  renderer crashed



Culprit / owner is not clear > for Blink triage


Builders failed on: 
- WebKit Linux Trusty (dbg): 
  https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Trusty%20%28dbg%29
- WebKit Mac10.11 (dbg): 
  https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Mac10.11%20%28dbg%29

webkit_tests failing on chromium.webkit/WebKit Win7 (dbg)

Builders failed on: 
- WebKit Win7 (dbg): 
  https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Win7%20%28dbg%29