	Avoid compiler warning.

diff -ur teckit-2.5.7.orig/source/Compiler.h teckit-2.5.7/source/Compiler.h
--- teckit-2.5.7.orig/source/Compiler.h	Tue Jun 27 05:50:43 2017
+++ teckit-2.5.7/source/Compiler.h	Tue Jun 27 17:23:04 2017
@@ -230,7 +230,7 @@
 		vector<UInt32>		byteClassLines;
 		vector<UInt32>		uniClassLines;
 
-		long				passType;
+		UInt32				passType;
 		UInt32				uniDefault;
 		UInt8				byteDefault;
 		bool				supplementaryChars;
