	Avoid compiler warning.

diff -ur teckit-2.5.9/source/Compiler.h teckit-src/source/Compiler.h
--- teckit-2.5.9/source/Compiler.h	Tue Mar 19 00:23:12 2019
+++ teckit-src/source/Compiler.h	Tue Mar 19 07:02:47 2019
@@ -229,7 +229,7 @@
 		vector<UInt32>		byteClassLines;
 		vector<UInt32>		uniClassLines;
 
-		long				passType;
+		UInt32				passType;
 		UInt32				uniDefault;
 		UInt8				byteDefault;
 		bool				supplementaryChars;
