Update test case for (worse) diagnostics on 5.1

Author: DougGregor

test/Constraints/function_builder_diags.swift

@@ -177,13 +177,13 @@ func acceptInt(_: Int, _: () -> Void) { }
 
 // SR-11350 crash due to improper recontextualization.
 func erroneousSR11350(x: Int) {
-  tuplify(true) { b in
+  tuplify(true) { b in  // expected-error{{value of type 'Optional<()>' has no member 'domap'}}
     17
     x + 25
     Optional(tuplify(false) { b in
       if b {
         acceptInt(0) { }
       }
-    }).domap(0) // expected-error{{value of type 'Optional<()>' has no member 'domap'}}
+    }).domap(0)
   }
 }