JS: Update API usage in MissingAwait

Author: asgerf

javascript/ql/lib/semmle/javascript/internal/BindingInfo.qll

@@ -132,6 +132,11 @@ class TypeNameBindingNode extends NameResolution::Node {
    * and enums and enum members have this property.
    */
   predicate isSanitizingPrimitiveType() { TypeResolution::isSanitizingPrimitiveType(this) }
+
+  /**
+   * Holds if the given type is a Promise object. Does not hold for unions unless all parts of the union are promises.
+   */
+  predicate isPromiseType() { TypeResolution::isPromiseType(this) }
 }
 
 /**

javascript/ql/src/Expressions/MissingAwait.ql

@@ -11,7 +11,6 @@
  */
 
 import javascript
-private import semmle.javascript.internal.TypeResolution
 
 /**
  * Holds if `call` is a call to an `async` function.
@@ -30,7 +29,7 @@ predicate isPromise(DataFlow::SourceNode node, boolean nullable) {
   isAsyncCall(node, nullable)
   or
   not isAsyncCall(node, _) and
-  TypeResolution::valueHasPromiseType(node.asExpr()) and
+  node.asExpr().getTypeBinding().isPromiseType() and
   nullable = true
 }