support ... as a special type in the reflection library.

R=rsc
DELTA=17  (17 added, 0 deleted, 0 changed)
OCL=18386
CL=18393
diff --git a/src/lib/reflect/test.go b/src/lib/reflect/test.go
index e277f20..d057251 100644
--- a/src/lib/reflect/test.go
+++ b/src/lib/reflect/test.go
@@ -124,6 +124,7 @@
 	typedump("struct {a int8; b int8; c int8; d int8; e int8; b int32}", "struct{a int8; b int8; c int8; d int8; e int8; b int32}");
 	typedump("struct {a int8 \"hi there\"; }", "struct{a int8 \"hi there\"}");
 	typedump("struct {a int8 \"hi \\x00there\\t\\n\\\"\\\\\"; }", "struct{a int8 \"hi \\x00there\\t\\n\\\"\\\\\"}");
+	typedump("struct {f *(args ...)}", "struct{f *(args ...)}");
 
 	valuedump("int8", "8");
 	valuedump("int16", "16");