Add example of "~foo as bar".

Author: cristianoc

analysis/tests/src/Xform.res

@@ -31,3 +31,6 @@ let foo = x =>
   | Some(q) => q.T.a + 1
   //     ^xfm
   }
+
+let withAs = (~x as name) => name+1
+//                   ^xfm

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

@@ -34,3 +34,9 @@ newText:
 
 Xform tests/src/Xform.res 30:9
 
+Xform tests/src/Xform.res 34:21
+Hit: Add type annotation
+{"start": {"line": 34, "character": 21}, "end": {"line": 34, "character": 24}}
+newText:
+name: int
+