Issue 2478. Support for 'factory lib.Interface.namedConstructor()'

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

Index: compiler/java/com/google/dart/compiler/resolver/ConstructorElementImplementation.java
diff --git a/compiler/java/com/google/dart/compiler/resolver/ConstructorElementImplementation.java b/compiler/java/com/google/dart/compiler/resolver/ConstructorElementImplementation.java
index 8db610a8160c4986845bd288df09e9be9ffaf44b..2fcce1aecc7652168256a60a26fe761e49fd0608 100644
--- a/compiler/java/com/google/dart/compiler/resolver/ConstructorElementImplementation.java
+++ b/compiler/java/com/google/dart/compiler/resolver/ConstructorElementImplementation.java
@@ -32,7 +32,12 @@ class ConstructorElementImplementation extends MethodElementImplementation
       return getRawName(((DartParameterizedTypeNode) name).getExpression());
     } else {
       DartPropertyAccess propertyAccess = (DartPropertyAccess) name;
-      return getRawName(propertyAccess.getQualifier()) + "." + getRawName(propertyAccess.getName());
+      DartNode qualifier = propertyAccess.getQualifier();
+      if (ElementKind.of(qualifier.getElement()) == ElementKind.CLASS) {
+        return getRawName(qualifier) + "." + getRawName(propertyAccess.getName());
+      } else {
+        return getRawName(propertyAccess.getName());
+      }
     }
   }