Type and naming cleanup

Do not use Hi prefic for things that shouldn't be visible to outside code

src/types.h

@@ -1,6 +1,8 @@
 #ifndef TYPES_H_
 #define TYPES_H_
 
+#include "hitypes.h"
+
 #include <stddef.h>
 #include <stdint.h>
 
@@ -21,7 +23,4 @@ typedef ptrdiff_t ptrdiff;
 typedef uint8_t bool8;
 typedef uint32_t bool32;
 
-typedef enum { HILOAD_FAIL = 0, HILOAD_OK } HiloadResult;
-
-
 #endif // TYPES_H_