Issue 3268. Support for replacing 'assert' statement with 'assert' function

compiler/java/com/google/dart/compiler/resolver/Elements.java

Index: compiler/java/com/google/dart/compiler/resolver/Elements.java
diff --git a/compiler/java/com/google/dart/compiler/resolver/Elements.java b/compiler/java/com/google/dart/compiler/resolver/Elements.java
index 7325b798ef5a4758ac8ad5b36c8c21a4c180d192..b2ff6f9a5a61bc41dc346a400638dfbe940f69f0 100644
--- a/compiler/java/com/google/dart/compiler/resolver/Elements.java
+++ b/compiler/java/com/google/dart/compiler/resolver/Elements.java
@@ -640,4 +640,19 @@ static FieldElementImplementation fieldFromNode(DartField node,
     }
     return false;
   }
+  
+  /**
+   * @return <code>true</code> if given {@link Element} if {@link MethodElement} for artificial
+   *         "assert" statement.
+   */
+  public static boolean isArtificialAssertMethod(Element element) {
+    if (element instanceof MethodElement) {
+      MethodElement methodElement = (MethodElement) element;
+      return Objects.equal(methodElement.getName(), "assert")
+          && methodElement.getEnclosingElement() instanceof LibraryElement
+          && methodElement.getEnclosingElement().getName().equals("dart://core/core_runtime.dart");
+    }
+    return false;
+  }
+
 }