+###### test: type_err6
+
+ func main()
+ a:= "hello"
+ if ?a:
+ print "no"
+ print a ?? "there"
+
+###### output: type_err6
+ .tmp.code:4:12: error: '?' requires a testable value, not string
+ .tmp.code:6:14: error: "??" requires a testable value, not string
+ oceani: type error in program - not running.
+
+