restored API to fix compatibility with Kotlin plugin

java/java-impl/src/com/intellij/refactoring/changeSignature/OverriderUsageInfo.java

@@ -17,6 +17,7 @@ package com.intellij.refactoring.changeSignature;
 
 import com.intellij.psi.PsiMethod;
 import com.intellij.usageView.UsageInfo;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * @author ven
@@ -46,6 +47,15 @@ public class OverriderUsageInfo extends UsageInfo {
     return myOverridingMethod;
   }
 
+  /**
+   * @deprecated use {@link #getOverridingMethod()} instead
+   */
+  @Nullable
+  @Override
+  public PsiMethod getElement() {
+    return (PsiMethod)super.getElement();
+  }
+
   public boolean isOriginalOverrider() {
     return myIsOriginalOverrider;
   }