java: minor optimization

java/java-psi-impl/src/com/intellij/psi/impl/java/stubs/impl/PsiParameterStubImpl.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2013 JetBrains s.r.o.
+ * Copyright 2000-2014 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -26,13 +26,12 @@ import com.intellij.psi.stubs.StubElement;
 import com.intellij.util.io.StringRef;
 import org.jetbrains.annotations.NotNull;
 
-import java.util.List;
-
 /**
  * @author max
  */
 public class PsiParameterStubImpl extends StubBase<PsiParameter> implements PsiParameterStub {
   private StringRef myName;
+  private boolean myGeneratedName = true;
   private final TypeInfo myType;
   private final boolean myIsEllipsis;
 
@@ -81,18 +80,11 @@ public class PsiParameterStubImpl extends StubBase<PsiParameter> implements PsiP
 
   public void setName(String name) {
     myName = StringRef.fromString(name);
+    myGeneratedName = false;
   }
 
   public boolean isAutoGeneratedName() {
-    final List children = getParentStub().getChildrenStubs();
-    int paramIndex = 0;
-    for (Object o : children) {
-      if (o instanceof PsiParameterStub) {
-        paramIndex++;
-        if (o == this) break;
-      }
-    }
-    return ("p" + paramIndex).equals(getName());
+    return myGeneratedName;
   }
 
   @Override