Add example of missing complete for constructor in switch.

See #414

Author: cristianoc

analysis/tests/src/Completion.res

@@ -355,3 +355,12 @@ let _ = <div name="" />
 
 // (let _ = ff(~opt1=3))
 //                     ^com
+
+type v = This | That
+
+let _ = x =>
+  switch x {
+  // | T
+  //    ^com
+  | _ => 4
+  }

analysis/tests/src/expected/Completion.res.txt

@@ -1381,3 +1381,8 @@ posCursor:[355:23] posNoWhite:[355:22] Found expr:[0:-1->355:23]
 posCursor:[355:23] posNoWhite:[355:22] Found expr:[355:12->355:23]
 []
 
+Complete tests/src/Completion.res 362:8
+posCursor:[362:8] posNoWhite:[362:7] Found expr:[360:8->365:3]
+posCursor:[362:8] posNoWhite:[362:7] Found expr:[361:2->365:3]
+[]
+