Added support for predefining preprocessor defines before parsing strings of code.

This prevents issues for preprocessor defines not getting treated properly for specific circumstances (such as macro wrappers for specifiers).

project/components/static_data.cpp

@@ -81,6 +81,8 @@ global CodeType t_wchar_t;
 global CodeType t_class;
 global CodeType t_typename;
 
+global Array< StringCached > PreprocessorDefines;
+
 #ifdef GEN_DEFINE_LIBRARY_CODE_CONSTANTS
 global CodeType t_b32;