HLSL: add in/out/inout qualifiers.
diff --git a/hlsl/hlslTokens.h b/hlsl/hlslTokens.h
index ebd9b63..5a5266a 100755
--- a/hlsl/hlslTokens.h
+++ b/hlsl/hlslTokens.h
@@ -61,6 +61,9 @@
     EHTokRowMajor,
     EHTokColumnMajor,
     EHTokPackOffset,
+    EHTokIn,
+    EHTokOut,
+    EHTokInOut,
 
     // template types
     EHTokBuffer,