[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/lambdas/destructuringInLambda.fir.ir.txt

@@ -126,10 +126,12 @@ FILE fqName:<root> fileName:/destructuringInLambda.kt
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public open fun toString (): kotlin.String declared in <root>.A'
           STRING_CONCATENATION type=kotlin.String
-            CONST String type=kotlin.String value="A(x="
+            CONST String type=kotlin.String value="A("
+            CONST String type=kotlin.String value="x="
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
               receiver: GET_VAR '<this>: <root>.A declared in <root>.A.toString' type=<root>.A origin=null
-            CONST String type=kotlin.String value=", y="
+            CONST String type=kotlin.String value=", "
+            CONST String type=kotlin.String value="y="
             GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:y type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
               receiver: GET_VAR '<this>: <root>.A declared in <root>.A.toString' type=<root>.A origin=null
             CONST String type=kotlin.String value=")"

compiler/testData/ir/irText/lambdas/destructuringInLambda.fir.kt.txt

@@ -49,7 +49,7 @@ data class A {
   }
 
   override fun toString(): String {
-    return "A(x=" + <this>.#x + ", y=" + <this>.#y + ")"
+    return "A(" + "x=" + <this>.#x + ", " + "y=" + <this>.#y + ")"
   }
 
 }