Optimize imports resolving by processing a name -> file maps instead of linear lists.

platform/lang-impl/src/com/intellij/psi/search/SpecificNameItemProcessor.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright 2000-2011 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.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * @author max
+ */
+package com.intellij.psi.search;
+
+import com.intellij.openapi.util.io.FileUtil;
+
+public abstract class SpecificNameItemProcessor implements PsiFileSystemItemProcessor {
+  private final String myName;
+
+  public String getName() {
+    return myName;
+  }
+
+  protected SpecificNameItemProcessor(String name) {
+    myName = name;
+  }
+
+  @Override
+  public boolean acceptItem(String name, boolean isDirectory) {
+    return FileUtil.pathsEqual(myName, name);
+  }
+}