Make the preparser standalone library and process build in debug mode.

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index a0d1536bbb27285835c1eb9a4234af4d9705ef2e..8cb36e91f9a7b07984c13a8913769e637272d3b7 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -4514,7 +4514,6 @@ SmartPointer<char> String::ToCString(AllowNullsFlag allow_nulls,
                                      int offset,
                                      int length,
                                      int* length_return) {
-  ASSERT(NativeAllocationChecker::allocation_allowed());
   if (robust_flag == ROBUST_STRING_TRAVERSAL && !LooksValid()) {
     return SmartPointer<char>(NULL);
   }
@@ -4594,7 +4593,6 @@ const uc16* String::GetTwoByteData(unsigned start) {
 
 
 SmartPointer<uc16> String::ToWideCString(RobustnessFlag robust_flag) {
-  ASSERT(NativeAllocationChecker::allocation_allowed());
   if (robust_flag == ROBUST_STRING_TRAVERSAL && !LooksValid()) {
     return SmartPointer<uc16>();
   }