Deprecate simplification of complex boolean constant expressions in whens and loops

^KT-39883 In Progress

compiler/testData/diagnostics/tests/controlFlowAnalysis/infiniteLoops.fir.kt

@@ -1,3 +1,4 @@
+// LANGUAGE: -ProhibitSimplificationOfNonTrivialConstBooleanExpressions
 fun unreachable() {}
 
 fun a() {
@@ -52,4 +53,4 @@ fun h(): Int {
     while (true) {
         if (true) return 12
     }
-} // should work
+} // should work