First round of dead file removal

experimental/visual_studio_plugin/src/MsAd7.BaseImpl/DocumentPosition.cs

-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.Linq;
-using System.Text;
-using Microsoft.VisualStudio;
-using Microsoft.VisualStudio.Debugger.Interop;
-
-namespace Google.MsAd7.BaseImpl
-{
-  public class DocumentPosition : IDebugDocumentPosition2
-  {
-
-    public DocumentPosition(IDebugDocumentPosition2 pos) {
-      pos.GetDocument(out doc_);
-      pos.GetFileName(out path_);
-      TEXT_POSITION[] begin = new TEXT_POSITION[1];
-      TEXT_POSITION[] end = new TEXT_POSITION[1];
-      pos.GetRange(begin, end);
-      beginPos_ = begin[0];
-      endPos_ = end[0];
-    }
-
-    public DocumentPosition(string path, uint line) {
-      path_ = path;
-      beginPos_.dwLine = line;
-      beginPos_.dwColumn = 0;
-      endPos_ = beginPos_;
-    }
-
-    public string Path {
-      get { return path_; }
-      set { path_ = value; }
-    }
-
-    public TEXT_POSITION BeginPos {
-      get { return beginPos_; }
-      set { beginPos_ = value; }
-    }
-
-    public TEXT_POSITION EndPos {
-      get { return endPos_; }
-      set { endPos_ = value; }
-    }
-
-    public IDebugDocument2 Doc {
-      get { return doc_; }
-      set { doc_ = value; }
-    }
-
-    public override bool Equals(object obj)
-    {
-      DocumentPosition other = obj as DocumentPosition;
-      bool result = (other != null);
-      result = result && (path_ == other.path_);
-      result = result && (beginPos_.Equals(other.beginPos_));
-      result = result && (endPos_.Equals(other.endPos_));
-      return result;
-    }
-
-    public override int GetHashCode()
-    {
-      Int64 accumulator = path_.GetHashCode() << 32 | beginPos_.GetHashCode();
-      accumulator = accumulator.GetHashCode() << 32 | endPos_.GetHashCode();
-      return accumulator.GetHashCode();
-    }
-
-    #region Implementation of IDebugDocumentPosition2
-
-    public int GetFileName(out string pbstrFileName) {
-      Debug.WriteLine("DocumentPosition.GetFileName");
-      pbstrFileName = path_;
-      return VSConstants.S_OK;
-    }
-
-    public int GetDocument(out IDebugDocument2 ppDoc) {
-      Debug.WriteLine("DocumentPosition.GetDocument");
-      ppDoc = doc_;
-      return VSConstants.S_OK;
-    }
-
-    public int IsPositionInDocument(IDebugDocument2 pDoc) {
-      Debug.WriteLine("DocumentPosition.IsPositionInDocument");
-      throw new NotImplementedException();
-    }
-
-    public int GetRange(TEXT_POSITION[] pBegPosition, TEXT_POSITION[] pEndPosition) {
-      Debug.WriteLine("DocumentPosition.GetRange");
-      pBegPosition[0] = beginPos_;
-      pEndPosition[0] = endPos_;
-      return VSConstants.S_OK;
-    }
-
-    #endregion
-
-    private string path_;
-    private TEXT_POSITION beginPos_ = new TEXT_POSITION();
-    private TEXT_POSITION endPos_ = new TEXT_POSITION();
-    private IDebugDocument2 doc_ = null;
-  }
-}