IJPL-197346 Search Everywhere for RD: adapt rdct tests and enable the new SE there

GitOrigin-RevId: 039a252f7ac84f745de6e5ffd2cfc7e7d2326343

platform/lang-impl/src/com/intellij/ide/actions/searcheverywhere/SearchEverywhereFeature.kt

@@ -23,9 +23,17 @@ object SearchEverywhereFeature {
     else if (isGuest) "search.everywhere.new.cwm.client.enabled"
     else "search.everywhere.new.enabled"
 
+  // Enable the first Search Everywhere implementation (`com.intellij.ide.actions.searcheverywhere`).
   @get:TestOnly
-  val additionalRegistryToTurnOffSplitInTests: Map<String, String>
+  val additionalRegistryToTurnOffSplitSEInTests: Map<String, String>
     get() = mapOf("search.everywhere.new.enabled" to "false",
                   "search.everywhere.new.rider.enabled" to "false",
                   "search.everywhere.new.cwm.client.enabled" to "false")
+
+  // Enable the new Search Everywhere implementation (`com.intellij.platform.searchEverywhere`).
+  @get:TestOnly
+  val additionalRegistryToTurnOnSplitSEInTests: Map<String, String>
+    get() = mapOf("search.everywhere.new.enabled" to "true",
+                  "search.everywhere.new.rider.enabled" to "true",
+                  "search.everywhere.new.cwm.client.enabled" to "true")
 }

platform/searchEverywhere/frontend/src/ui/SePopupContentPane.kt

@@ -50,6 +50,7 @@ import com.intellij.util.ui.UIUtil
 import kotlinx.coroutines.*
 import kotlinx.coroutines.flow.*
 import org.jetbrains.annotations.ApiStatus.Internal
+import org.jetbrains.annotations.TestOnly
 import java.awt.BorderLayout
 import java.awt.Dimension
 import java.awt.event.*
@@ -812,6 +813,11 @@ class SePopupContentPane(private val project: Project?, private val vm: SePopupV
     }
   }
 
+  @TestOnly
+  fun getResultListModel(): SeResultListModel {
+    return resultListModel
+  }
+
   override fun dispose() {}
 
   companion object {