update toString() of API::Node, and update expected output that depends on the former

Author: erik-krogh

javascript/ql/lib/semmle/javascript/ApiGraphs.qll

@@ -317,8 +317,8 @@ module API {
       exists(Node pred, Label::ApiLabel lbl, string predpath |
         Impl::edge(pred, lbl, this) and
         predpath = pred.getAPath(length - 1) and
-        exists(string space | if length = 1 then space = "" else space = " " |
-          result = "(" + lbl + space + predpath + ")" and
+        exists(string dot | if length = 1 then dot = "" else dot = "." |
+          result = predpath + dot + lbl and
           // avoid producing strings longer than 1MB
           result.length() < 1000 * 1000
         )

javascript/ql/test/library-tests/TypeScript/HasUnderlyingType/HasUnderlyingType.expected

@@ -1,6 +1,6 @@
 underlyingTypeNode
-| foo | Bar | foo.ts:3:1:5:1 | use (instance (member Bar (member exports (module foo)))) |
-| foo | Bar | foo.ts:3:12:3:12 | use (instance (member Bar (member exports (module foo)))) |
+| foo | Bar | foo.ts:3:1:5:1 | use moduleImport("foo").getMember("exports").getMember("Bar").getInstance() |
+| foo | Bar | foo.ts:3:12:3:12 | use moduleImport("foo").getMember("exports").getMember("Bar").getInstance() |
 #select
 | foo.ts:3:12:3:12 | x | foo.Bar in unknown scope |
 | foo.ts:4:10:4:10 | x | foo.Bar in unknown scope |