Advance deprecation level of FP to lesser than Int types to ERROR #KT-30360

generators/builtins/primitives.kt

@@ -424,6 +424,7 @@ class GeneratePrimitives(out: PrintWriter) : BuiltInsSourceGenerator(out) {
 
             if (isConversionDeprecated(otherKind)) {
                 out.println("    @Deprecated(\"Unclear conversion. To achieve the same result convert to Int explicitly and then to $otherName.\", ReplaceWith(\"toInt().to$otherName()\"))")
+                out.println("    @DeprecatedSinceKotlin(warningSince = \"1.3\", errorSince = \"1.5\")")
             }
 
             out.println("    public override fun to$otherName(): $otherName")

generators/interpreter/GenerateInterpreterMap.kt

@@ -52,7 +52,7 @@ fun generateMap(): String {
 
     val binaryIrOperationsMap = getBinaryIrOperationMap(irBuiltIns)
 
-    p.println("@Suppress(\"DEPRECATION\")")
+    p.println("@Suppress(\"DEPRECATION_ERROR\")")
     p.println("val unaryFunctions = mapOf<CompileTimeFunction, Function1<Any?, Any?>>(")
     p.println(generateUnaryBody(unaryOperationsMap, irBuiltIns))
     p.println(")")