Add example where create interface file does not work with V4

See #617

Author: cristianoc

analysis/tests/src/JsxV4.res

@@ -15,8 +15,14 @@ let _ = <M4 first="abc" />
 let _ = <M4 first="abc" />
 //       ^hov
 
-
 module MM = {
   @react.component
   let make = () => React.null
 }
+
+module Other = {
+  @react.component
+  let make = (~name) => React.string(name)
+}
+
+// ^int

analysis/tests/src/expected/JsxV4.res.txt

@@ -16,3 +16,17 @@ Completable: Cjsx([M4], f, [first, f])
 Hover src/JsxV4.res 14:9
 {"contents": {"kind": "markdown", "value": "```rescript\nReact.component<M4.props<string, string, string>>\n```\n\n---\n\n```\n \n```\n```rescript\ntype React.component<'props> = Jsx.component<'props>\n```\nGo to: [Type definition](command:rescript-vscode.go_to_location?%5B%22React.res%22%2C12%2C0%5D)\n\n\n---\n\n```\n \n```\n```rescript\ntype M4.props<'first, 'fun, 'second> = {\n  first: 'first,\n  fun?: 'fun,\n  second?: 'second,\n}\n```\nGo to: [Type definition](command:rescript-vscode.go_to_location?%5B%22JsxV4.res%22%2C3%2C2%5D)\n\n\n Doc Comment For M4 "}}
 
+Create Interface src/JsxV4.res
+module M4: {
+  @react.component
+  let make: (~first: string, ~fun: string=?, ~second: string=?) => React.element
+}
+module MM: {
+  @react.component
+  let make: unit => React.element
+}
+module Other: {
+  type props<'name> = {name: 'name}
+  let make: props<string> => React.element
+}
+