New 'Clean Up' to convert old optional parameters to the new optional named where possible.

editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/internal/completion/ast/FunctionCompleter.java

Index: editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/internal/completion/ast/FunctionCompleter.java
diff --git a/editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/internal/completion/ast/FunctionCompleter.java b/editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/internal/completion/ast/FunctionCompleter.java
index d827bd1f780e9a50feaa45684f9aa7729bab6ee6..739fc9a760c329fc708b8ef642e2d622d599071c 100644
--- a/editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/internal/completion/ast/FunctionCompleter.java
+++ b/editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/internal/completion/ast/FunctionCompleter.java
@@ -26,18 +26,29 @@ public class FunctionCompleter extends DartFunction implements CompletionNode {
   static final long serialVersionUID = 1L;
 
   public static FunctionCompleter from(DartFunction p) {
-    return CompletionUtil.init(new FunctionCompleter(
-        p.getParameters(),
-        p.getParametersCloseParen(),
-        p.getBody(),
-        p.getReturnTypeNode()), p);
+    return CompletionUtil.init(
+        new FunctionCompleter(
+            p.getParameters(),
+            p.getParametersOptionalOpen(),
+            p.getParametersOptionalClose(),
+            p.getParametersCloseParen(),
+            p.getBody(),
+            p.getReturnTypeNode()),
+        p);
   }
 
   private Stack<Mark> stack;
 
-  public FunctionCompleter(List<DartParameter> params, int parametersCloseParen, DartBlock body,
+  public FunctionCompleter(List<DartParameter> params, int parametersOptionalOpen,
+      int parametersOptionalClose, int parametersCloseParen, DartBlock body,
       DartTypeNode returnTypeNode) {
-    super(params, parametersCloseParen, body, returnTypeNode);
+    super(
+        params,
+        parametersOptionalOpen,
+        parametersOptionalClose,
+        parametersCloseParen,
+        body,
+        returnTypeNode);
   }
 
   @Override