Removes dartc reliance on its own libraries, now can be targeted at any implementation's libraries

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

Index: compiler/java/com/google/dart/compiler/resolver/Resolver.java
diff --git a/compiler/java/com/google/dart/compiler/resolver/Resolver.java b/compiler/java/com/google/dart/compiler/resolver/Resolver.java
index ffc02d776481810d1750ada1f87b01c1776c0d5e..d48704ffd5b22e61dcadd1f68143f937839c7c24 100644
--- a/compiler/java/com/google/dart/compiler/resolver/Resolver.java
+++ b/compiler/java/com/google/dart/compiler/resolver/Resolver.java
@@ -39,6 +39,7 @@ import com.google.dart.compiler.ast.DartMapLiteral;
 import com.google.dart.compiler.ast.DartMethodDefinition;
 import com.google.dart.compiler.ast.DartMethodInvocation;
 import com.google.dart.compiler.ast.DartNamedExpression;
+import com.google.dart.compiler.ast.DartNativeBlock;
 import com.google.dart.compiler.ast.DartNewExpression;
 import com.google.dart.compiler.ast.DartNode;
 import com.google.dart.compiler.ast.DartParameter;
@@ -595,7 +596,8 @@ public class Resolver {
         }
       }
 
-      if ((functionNode.getBody() == null)
+      DartBlock body = functionNode.getBody();
+      if (body == null 
           && !Elements.isNonFactoryConstructor(member)
           && !member.getModifiers().isAbstract()
           && !((ClassElement) member.getEnclosingElement()).isInterface()) {
@@ -603,7 +605,8 @@ public class Resolver {
       }
       resolve(functionNode.getBody());
 
-      if (Elements.isNonFactoryConstructor(member)) {
+      if (Elements.isNonFactoryConstructor(member) 
+          && !(body instanceof DartNativeBlock)) {
         resolveInitializers(node, initializedFields);
         // Test for missing final initialized fields
         if (!this.currentHolder.isInterface() && !member.getModifiers().isRedirectedConstructor()) {