[bootstrapper] Bump stack requirement for native compilation.

This bumps the required stack space gap when the bootstrapper kicks off
compilation of native scripts during genesis. The stack requirements are
now higher for simulators in no-snapshot mode with Ignition being used.

R=jochen@chromium.org
TEST=mjsunit/regress/regress-681984
BUG=v8:6066

Change-Id: I65df388d1b57c09db124ac9a85d380b4edb7d260
Reviewed-on: https://chromium-review.googlesource.com/451275
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43675}

src/bootstrapper.cc

@@ -3132,7 +3132,7 @@ bool Bootstrapper::CompileNative(Isolate* isolate, Vector<const char> name,
   // environment has been at least partially initialized. Add a stack check
   // before entering JS code to catch overflow early.
   StackLimitCheck check(isolate);
-  if (check.JsHasOverflowed(1 * KB)) {
+  if (check.JsHasOverflowed(4 * KB)) {
     isolate->StackOverflow();
     return false;
   }