added flag 'isCompleted' to resolve call for tests

compiler/frontend/src/org/jetbrains/jet/lang/resolve/calls/model/ResolvedCallImpl.java

@@ -304,6 +304,11 @@ public class ResolvedCallImpl<D extends CallableDescriptor> implements ResolvedC
         completed = true;
     }
 
+    @Override
+    public boolean isCompleted() {
+        return completed;
+    }
+
     private void assertNotCompleted(String elementName) {
         if (completed) throw new IllegalStateException(elementName + " is erased after resolution completion.");
     }

compiler/frontend/src/org/jetbrains/jet/lang/resolve/calls/model/ResolvedCallWithTrace.java

@@ -47,4 +47,6 @@ public interface ResolvedCallWithTrace<D extends CallableDescriptor> extends Res
     ResolvedCallImpl<D> getCallToCompleteTypeArgumentInference();
 
     void markCallAsCompleted();
+
+    boolean isCompleted();
 }

compiler/frontend/src/org/jetbrains/jet/lang/resolve/calls/model/VariableAsFunctionResolvedCall.java

@@ -143,4 +143,9 @@ public class VariableAsFunctionResolvedCall implements ResolvedCallWithTrace<Fun
         functionCall.markCallAsCompleted();
         variableCall.markCallAsCompleted();
     }
+
+    @Override
+    public boolean isCompleted() {
+        return functionCall.isCompleted() && variableCall.isCompleted();
+    }
 }