Issue 1575. Allow declare new named parameters in method override.

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 25395365b4667f0d0808ef66248e0ab6118fec71..516a412a1c99f87ae5e1f352e6acc3928b1a869c 100644
--- a/compiler/java/com/google/dart/compiler/resolver/Resolver.java
+++ b/compiler/java/com/google/dart/compiler/resolver/Resolver.java
@@ -69,7 +69,6 @@ import com.google.dart.compiler.type.Type;
 import com.google.dart.compiler.type.TypeVariable;
 import com.google.dart.compiler.util.StringUtils;
 
-import java.util.ArrayList;
 import java.util.EnumSet;
 import java.util.Iterator;
 import java.util.List;
@@ -607,70 +606,6 @@ public class Resolver {
         }
       }
 
-      // If this method is an override, make sure its signature roughly matches any superclass
-      // declaration.
-      if (ElementKind.of(currentHolder).equals(ElementKind.CLASS)) {
-        // Look for this method in super implementations.
-        ClassElement classElement = (ClassElement) currentHolder;
-        try {
-          for (InterfaceType supertype : classElement.getAllSupertypes()) {
-            Member superMember = supertype.lookupMember(member.getName());
-            if (superMember == null) {
-              continue;
-            }
-            Element superElement = superMember.getElement();
-            if (ElementKind.of(superElement).equals(ElementKind.METHOD)) {
-              MethodElement superMethod = (MethodElement) superElement;
-              // Ignore private members
-              if (DartIdentifier.isPrivateName(member.getName())
-                  && Elements.getLibraryElement(superMethod) != Elements
-                      .getLibraryElement(member)) {
-                continue;
-              }
-              // Compare the # of parameters
-              List<VariableElement> superParameters = superMethod
-                  .getParameters();
-              if (superParameters.size() != parameters.size()) {
-                onError(node.getName(),
-                        ResolverErrorCode.CANNOT_OVERRIDE_METHOD_WRONG_NUM_PARAMS,
-                        member.getName());
-              } else {
-                // Make sure that named parameters match
-                List<VariableElement> named = new ArrayList<VariableElement>();
-                for (VariableElement v : member.getParameters()) {
-                  if (v.isNamed()) {
-                    named.add(v);
-                  }
-                }
-                List<VariableElement> superNamed = new ArrayList<VariableElement>();
-                for (VariableElement v : superParameters) {
-                  if (v.isNamed()) {
-                    superNamed.add(v);
-                  }
-                }
-                if (named.size() != superNamed.size()) {
-                  onError(node.getName(),
-                          ResolverErrorCode.CANNOT_OVERRIDE_METHOD_NUM_NAMED_PARAMS,
-                          member.getName());
-                } else {
-                  while (!named.isEmpty()) {
-                    VariableElement v1 = named.remove(0);
-                    VariableElement v2 = superNamed.remove(0);
-                    if (!v1.getName().equals(v2.getName())) {
-                      onError(v1.getNode(),
-                              ResolverErrorCode.CANNOT_OVERRIDE_METHOD_ORDER_NAMED_PARAMS,
-                              member.getName());
-                      break;
-                    }
-                  }
-                }
-              }
-            }
-          }
-        } catch (CyclicDeclarationException ignored) {
-        } catch (DuplicatedInterfaceException ignored) {
-        }
-      }
       context = previousContext;
       innermostFunction = currentMethod = null;
       return member;