IDEA-174406 Add speed search into the smart step into popup

java/debugger/impl/src/com/intellij/debugger/actions/PsiMethodListPopupStep.java

@@ -107,11 +107,21 @@ class PsiMethodListPopupStep implements ListPopupStep<SmartStepTarget> {
   }
 
   public boolean isSpeedSearchEnabled() {
-    return false;
+    return true;
   }
 
   public SpeedSearchFilter<SmartStepTarget> getSpeedSearchFilter() {
-    return null;
+    return new SpeedSearchFilter<SmartStepTarget>() {
+      @Override
+      public boolean canBeHidden(SmartStepTarget value) {
+        return true;
+      }
+
+      @Override
+      public String getIndexedString(SmartStepTarget value) {
+        return getTextFor(value);
+      }
+    };
   }
 
   public boolean isAutoSelectionEnabled() {