More pointer truncation & implicit conversion fixes

include/JSystem/JStudio/JStudio/fvb-data.h

@@ -14,7 +14,7 @@ extern const char ga4cSignature[4];
 
 const int PARAGRAPH_DATA = 1;
 
-typedef enum TEComposite {
+enum TEComposite {
     /* 0x0 */ COMPOSITE_NONE,
     /* 0x1 */ COMPOSITE_RAW,
     /* 0x2 */ COMPOSITE_IDX,

include/JSystem/JStudio/JStudio/stb.h

@@ -86,7 +86,7 @@ public:
     const void* getSequence() const { return pSequence; }
     void setSequence_(const void* arg1) { pSequence = arg1; }
     const void* getSequence_offset(s32 i_no) const {
-        int s32Val = (intptr_t)getSequence();
+        intptr_t s32Val = (intptr_t)getSequence();
         return (const void*)(s32Val + i_no);
     }
     const void* getSequence_next() const { return pSequence_next; }