Give type name when complaining about using input-only type for output
or v.v.
diff --git a/Tools/bgen/bgen/bgenType.py b/Tools/bgen/bgen/bgenType.py
index 9b4f11f..51f5844 100644
--- a/Tools/bgen/bgen/bgenType.py
+++ b/Tools/bgen/bgen/bgenType.py
@@ -115,7 +115,7 @@
 	"Mix-in class to boobytrap passOutput"
 
 	def passOutput(self, name):
-		raise RuntimeError, "this type can only be used for input parameters"
+		raise RuntimeError, "Type '%s' can only be used for input parameters" % self.typeName
 
 class InputOnlyType(InputOnlyMixIn, Type):
 
@@ -126,7 +126,7 @@
 	"Mix-in class to boobytrap passInput"
 
 	def passInput(self, name):
-		raise RuntimeError, "this type can only be used for output parameters"
+		raise RuntimeError, "Type '%s' can only be used for output parameters" % self.typeName
 
 class OutputOnlyType(OutputOnlyMixIn, Type):