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/declarations/annotations/annotationsOnDelegatedMembers.kt.txt

@@ -1,5 +1,5 @@
 annotation class Ann : Annotation {
-  constructor() /* primary */ 
+  constructor() /* primary */
 
 }
 
@@ -9,13 +9,13 @@ interface IFoo {
     abstract get
 
   @Ann
-  abstract fun testFun() 
+  abstract fun testFun()
   @Ann
   abstract val String.testExtVal: String
     abstract get
 
   @Ann
-  abstract fun String.testExtFun() 
+  abstract fun String.testExtFun()
 
 }
 
@@ -27,25 +27,24 @@ class DFoo : IFoo {
   }
 
   private /* final field */ val $$delegate_0: IFoo = d
-  @Ann
-  override fun String.testExtFun() {
-    (<this>.#$$delegate_0, <this>).testExtFun()
-  }
-
-  @Ann
-  override fun testFun() {
-    <this>.#$$delegate_0.testFun()
-  }
+  override val testVal: String
+    override get(): String {
+      return <this>.#$$delegate_0.<get-testVal>()
+    }
 
   override val String.testExtVal: String
     override get(): String {
       return (<this>.#$$delegate_0, <this>).<get-testExtVal>()
     }
 
-  override val testVal: String
-    override get(): String {
-      return <this>.#$$delegate_0.<get-testVal>()
-    }
+  @Ann
+  override fun testFun() {
+    <this>.#$$delegate_0.testFun()
+  }
+
+  @Ann
+  override fun String.testExtFun() {
+    (<this>.#$$delegate_0, <this>).testExtFun()
+  }
 
 }
-