Fixes to memory mangment, library is much faster now.

test/Parsed/Array.Parsed.hpp

@@ -4,6 +4,8 @@
 #define GEN_FEATURE_PARSING
 #define GEN_DEFINE_LIBRARY_CODE_CONSTANTS
 #define GEN_ENFORCE_STRONG_CODE_TYPES
+#define GEN_EXPOSE_BACKEND
+#define GEN_BENCHMARK
 #include "gen.hpp"
 
 using namespace gen;