robs bug converting unsafe.pointer

R=r
OCL=20834
CL=20834
diff --git a/src/cmd/gc/go.h b/src/cmd/gc/go.h
index dc6de63..775a4cc 100644
--- a/src/cmd/gc/go.h
+++ b/src/cmd/gc/go.h
@@ -156,6 +156,7 @@
 	uchar	embedded;	// TFIELD embedded type
 	uchar	siggen;
 	uchar	funarg;
+	uchar	copyany;
 
 	// TFUNCT
 	uchar	thistuple;