[crankshaft] Protect against deopt loops from string length overflows.

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index 1c31840a55c1077b583c67a4db3d62d3a438c7cd..589f36d46d4e5e835fe89188255c19bc8982decb 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -1214,6 +1214,13 @@ Handle<Object> Factory::NewError(Handle<JSFunction> constructor,
   return maybe_error.ToHandleChecked();
 }
 
+Handle<Object> Factory::NewInvalidStringLengthError() {
+  // Invalidate the "string length" protector.
+  if (isolate()->IsStringLengthOverflowIntact()) {
+    isolate()->InvalidateStringLengthOverflowProtector();
+  }
+  return NewRangeError(MessageTemplate::kInvalidStringLength);
+}
 
 #define DEFINE_ERROR(NAME, name)                                              \
   Handle<Object> Factory::New##NAME(MessageTemplate::Template template_index, \