JS: Fix handling of unknown properties

These would shorten the expected distance to a node, but would never be usable as an edge, meaning we failed to pick a preferred predecessor.

Author: asgerf

javascript/ql/lib/semmle/javascript/endpoints/EndpointNaming.qll

@@ -39,7 +39,7 @@ private string join(string x, string y) {
 private predicate isPackageExport(API::Node node) { node = API::moduleExport(_) }
 
 private predicate relevantEdge(API::Node pred, API::Node succ) {
-  succ = pred.getAMember() and
+  succ = pred.getMember(_) and
   not isPrivateLike(succ)
 }
 

javascript/ql/test/library-tests/EndpointNaming/EndpointNaming.expected

@@ -2,7 +2,6 @@ testFailures
 | pack11/index.ts:33:1:33:16 |  | Unexpected result: method=(pack11).C3.privateField |
 | pack11/index.ts:33:18:33:69 | // $ me ... ng.name | Missing result:method=(pack11).C3.publicField.really.long.name |
 | pack11/index.ts:41:23:41:24 |  | Unexpected result: alias=(pack11).C3.publicField.really.long.name==(pack11).C3.privateField |
-| pack11/index.ts:49:12:49:53 | // $ me ... .name.m | Missing result:method=(pack11).C4.really.long.name.m |
 ambiguousPreferredPredecessor
 | pack2/lib.js:8:22:8:34 | def moduleImport("pack2").getMember("exports").getMember("lib").getMember("LibClass").getMember("foo") |
 ambiguousSinkName