[IR] Split const folding into necessary one and for optimizations only

In this commit we have a lot of change in test data. This was caused
by the way where we evaluate constants. We split constant evaluation
into two distinct parts: only necessary evaluations for `fir2ir`
(like const val and annotations) and optimizations for lowering.
Now we don't do all constant evaluation on `fir2ir`, but IR
dump is executed after this phase, so test data changed.

#KT-58923

compiler/testData/ir/irText/declarations/contextReceivers/fromKEEP/compareTo.fir.kt.txt

@@ -55,7 +55,7 @@ data class Pair<A : Any?, B : Any?> {
   }
 
   override fun toString(): String {
-    return "Pair(first=" + <this>.#first + ", second=" + <this>.#second + ")"
+    return "Pair(" + "first=" + <this>.#first + ", " + "second=" + <this>.#second + ")"
   }
 
 }