diff --git a/platform/diff-impl/src/com/intellij/diff/tools/fragmented/LineCol.java b/platform/diff-api/src/com/intellij/diff/util/LineCol.java
similarity index 94%
rename from platform/diff-impl/src/com/intellij/diff/tools/fragmented/LineCol.java
rename to platform/diff-api/src/com/intellij/diff/util/LineCol.java
index 965e347a209f..c5ce3751e3fa 100644
--- a/platform/diff-impl/src/com/intellij/diff/tools/fragmented/LineCol.java
+++ b/platform/diff-api/src/com/intellij/diff/util/LineCol.java
@@ -13,15 +13,20 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package com.intellij.diff.tools.fragmented;
+package com.intellij.diff.util;
 
 import com.intellij.openapi.editor.Document;
 import org.jetbrains.annotations.NotNull;
 
 public class LineCol {
+  // counting from zero
   public final int line;
   public final int column;
 
+  public LineCol(int line) {
+    this(line, 0);
+  }
+
   public LineCol(int line, int column) {
     this.line = line;
     this.column = column;
diff --git a/platform/diff-impl/src/com/intellij/diff/tools/fragmented/OnesideDiffViewer.java b/platform/diff-impl/src/com/intellij/diff/tools/fragmented/OnesideDiffViewer.java
index 585e7ca6f193..284637231638 100644
--- a/platform/diff-impl/src/com/intellij/diff/tools/fragmented/OnesideDiffViewer.java
+++ b/platform/diff-impl/src/com/intellij/diff/tools/fragmented/OnesideDiffViewer.java
@@ -29,12 +29,9 @@ import com.intellij.diff.requests.DiffRequest;
 import com.intellij.diff.tools.util.*;
 import com.intellij.diff.tools.util.base.*;
 import com.intellij.diff.tools.util.side.TwosideTextDiffViewer;
-import com.intellij.diff.util.DiffUserDataKeys;
+import com.intellij.diff.util.*;
 import com.intellij.diff.util.DiffUserDataKeysEx.ScrollToPolicy;
-import com.intellij.diff.util.DiffUtil;
 import com.intellij.diff.util.DiffUtil.DocumentData;
-import com.intellij.diff.util.LineRange;
-import com.intellij.diff.util.Side;
 import com.intellij.openapi.Disposable;
 import com.intellij.openapi.actionSystem.AnAction;
 import com.intellij.openapi.actionSystem.CommonDataKeys;