this is a more "clean" conversion to 64 bit than the type-fixups branch, which does borrow some elements from it but has far less find and replace...it is about 98-99% done, notes to follow later

engine/shared/library/sharedFile/src/shared/FileStreamerThread.cpp

@@ -166,7 +166,7 @@ void FileStreamerThread::processRead(volatile Request *request)
 {
 	NOT_NULL(request);
 
-	// shortcut to the file
+	// int16_tcut to the file
 	OsFile *osFile = request->osFile;
 
 	// seek to the requested offset

engine/shared/library/sharedFile/src/shared/Iff.cpp

@@ -1551,7 +1551,7 @@ void Iff::read_string(char *string, int maxLength)
 	for ( ; *source; ++string, ++source, ++s.used, --maxLength)
 	{
 		DEBUG_FATAL(s.used >= s.length, ("hit end of chunk before string terminator"));
-		DEBUG_FATAL(maxLength <= 0, ("destination string too short"));
+		DEBUG_FATAL(maxLength <= 0, ("destination string too int16_t"));
 		*string = *source;
 	}
 
@@ -1559,7 +1559,7 @@ void Iff::read_string(char *string, int maxLength)
 	++s.used;
 
 	// nullptr terminate the output string
-	DEBUG_FATAL(maxLength <= 0, ("destination string too short"));
+	DEBUG_FATAL(maxLength <= 0, ("destination string too int16_t"));
 	*string = '\0';
 }
 
@@ -1667,7 +1667,7 @@ std::string Iff::read_stdstring()
 void  Iff::read_string(Unicode::String &str)
 {
 	const int32 count = read_int32 ();
-	unsigned short * data = new unsigned short [count];
+	uint16_t * data = new uint16_t [count];
 	read_uint16 (count, data);
 	str.assign (data, static_cast<size_t>(count));
 	delete [] data;

engine/shared/library/sharedFile/src/shared/TreeFile.cpp

@@ -505,7 +505,7 @@ int TreeFile::getFileSize(const char *fileName)
 // ----------------------------------------------------------------------
 /**
  * This function assumes the output buffer is large enough.
- * The output path will be the same length or shorter than the input path.
+ * The output path will be the same length or int16_ter than the input path.
  */
 
 void TreeFile::fixUpFileName(char *output, const char *fileName, bool warning)
@@ -800,7 +800,7 @@ const char *TreeFile::getSearchPath(int index)
 
 //-----------------------------------------------------------------
 /**
- * This function will return the shortest trailing path of its input that
+ * This function will return the int16_test trailing path of its input that
  * can be loaded by the TreeFile.  If no files can be loaded, this routine
  * will return nullptr.
  */