[wasm][fuzzer] Detect stack overflow in interpreter

The {InterpretWasmModuleForTesting} is used to determine whether a
module is cheap enough to execute the compiled code (there is a cap on
the number of executed instructions). If the module executes too much
code, {InterpretWasmModuleForTesting} returns {false}.
The check for a stack overflow was missing though, so it would return
{true} in that case, and the compiled code would be executed. This can
lead to timeouts.

R=ahaas@chromium.org

Bug: chromium:947909
Change-Id: I0b003963d3ca548f388fdf4ec4995c4199656f91
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1693011Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62617}

test/common/wasm/wasm-module-runner.cc

@@ -125,7 +125,11 @@ bool InterpretWasmModuleForTesting(Isolate* isolate,
                     arguments.get());
   WasmInterpreter::State interpreter_result = thread->Run(kMaxNumSteps);
 
-  isolate->clear_pending_exception();
+  if (isolate->has_pending_exception()) {
+    // Stack overflow during interpretation.
+    isolate->clear_pending_exception();
+    return false;
+  }
 
   return interpreter_result != WasmInterpreter::PAUSED;
 }