Fix stack overflow test failures with no snap.

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index a48bb4df4d7502caae9ea4c0be2854921160a38f..d0e89c1cd7110be71fdfd75d358524423fdd825a 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -1301,6 +1301,12 @@ bool Genesis::CompileNative(Vector<const char> name, Handle<String> source) {
 #ifdef ENABLE_DEBUGGER_SUPPORT
   isolate->debugger()->set_compiling_natives(true);
 #endif
+  // During genesis, the boilerplate for stack overflow won't work until the
+  // environment has been at least partially initialized. Add a stack check
+  // before entering JS code to catch overflow early.
+  StackLimitCheck check(Isolate::Current());
+  if (check.HasOverflowed()) return false;
+
   bool result = CompileScriptCached(name,
                                     source,
                                     NULL,
@@ -1362,6 +1368,7 @@ bool Genesis::CompileScriptCached(Vector<const char> name,
                      ? top_context->builtins()
                      : top_context->global());
   bool has_pending_exception;
+
   Execution::Call(fun, receiver, 0, NULL, &has_pending_exception);
   if (has_pending_exception) return false;
   return true;