refactor: Use R_ASSERT1_CURE to validate vectors in _compressed_normal.cpp (#1982)

Author: AMS21

src/xrCore/_compressed_normal.cpp

@@ -44,10 +44,10 @@ void pvInitializeStatics(void)
 
 u16 pvCompress(const Fvector& vec)
 {
+    R_ASSERT1_CURE(_valid(vec), return 0);
+
     if (fis_zero(vec.x) && fis_zero(vec.y) && fis_zero(vec.z))
         return 0;
-    if (!_valid(vec))
-        return 0;
 
     // save copy
     Fvector tmp = vec;