Issue 5292. Unreferenced imported identifiers should not be an error

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

Index: compiler/java/com/google/dart/compiler/resolver/MemberBuilder.java
diff --git a/compiler/java/com/google/dart/compiler/resolver/MemberBuilder.java b/compiler/java/com/google/dart/compiler/resolver/MemberBuilder.java
index c7559db7fa788b2593aee099e11af5e9b442227b..eeb8801658ee0d8f5ea0de818b92998b2887c925 100644
--- a/compiler/java/com/google/dart/compiler/resolver/MemberBuilder.java
+++ b/compiler/java/com/google/dart/compiler/resolver/MemberBuilder.java
@@ -180,7 +180,7 @@ public class MemberBuilder {
       for (DartParameter parameter : node.getParameters()) {
         parameters.add((VariableElement) parameter.accept(this));
       }
-      Type returnType = resolveType(node.getReturnTypeNode(), false, false,
+      Type returnType = resolveType(node.getReturnTypeNode(), false, false, true,
           TypeErrorCode.NO_SUCH_TYPE, TypeErrorCode.WRONG_NUMBER_OF_TYPE_ARGUMENTS);
       ClassElement functionElement = getTypeProvider().getFunctionType().getElement();
       element.setFunctionType(Types.makeFunctionType(getContext(), functionElement,
@@ -254,7 +254,7 @@ public class MemberBuilder {
           isStatic = true;
         }
       }
-      Type type = resolveType(node.getTypeNode(), isStatic, false, TypeErrorCode.NO_SUCH_TYPE,
+      Type type = resolveType(node.getTypeNode(), isStatic, false, true, TypeErrorCode.NO_SUCH_TYPE,
           TypeErrorCode.WRONG_NUMBER_OF_TYPE_ARGUMENTS);
       for (DartField fieldNode : node.getFields()) {
         if (fieldNode.getModifiers().isAbstractField()) {
@@ -307,6 +307,7 @@ public class MemberBuilder {
               null,
               true,
               false,
+              false,
               ResolverErrorCode.NO_SUCH_TYPE_CONSTRUCTOR,
               ResolverErrorCode.WRONG_NUMBER_OF_TYPE_ARGUMENTS).getElement();
         }