Psi2ir: do not sort descriptors for fake override generation

Descriptors are already supposed to be sorted in scopes. The problem is
that rendering descriptors for sorting takes a lot of time (~1.5% of
total compilation time of intellij with JVM IR), and simple heuristics,
like comparing by names first, don't fully help with it.

 #KT-48233

compiler/testData/ir/irText/firProblems/kt43342.kt.txt

@@ -9,22 +9,6 @@ open class ControlFlowInfo<K : Any?, V : Any?> : Map<K, V> {
     field = map
     get
 
-  override fun containsKey(key: K): Boolean {
-    return <this>.#map.containsKey(key = key)
-  }
-
-  override fun containsValue(value: V): Boolean {
-    return <this>.#map.containsValue(value = value)
-  }
-
-  override operator fun get(key: K): V? {
-    return <this>.#map.get(key = key)
-  }
-
-  override fun isEmpty(): Boolean {
-    return <this>.#map.isEmpty()
-  }
-
   override val entries: Set<Entry<K, V>>
     override get(): Set<Entry<K, V>> {
       return <this>.#map.<get-entries>()
@@ -45,6 +29,22 @@ open class ControlFlowInfo<K : Any?, V : Any?> : Map<K, V> {
       return <this>.#map.<get-values>()
     }
 
+  override fun containsKey(key: K): Boolean {
+    return <this>.#map.containsKey(key = key)
+  }
+
+  override fun containsValue(value: V): Boolean {
+    return <this>.#map.containsValue(value = value)
+  }
+
+  override operator fun get(key: K): V? {
+    return <this>.#map.get(key = key)
+  }
+
+  override fun isEmpty(): Boolean {
+    return <this>.#map.isEmpty()
+  }
+
 }
 
 class StringFlowInfo : ControlFlowInfo<String, String> {