Use while loop for progressions that cannot overflow (instead of

do-while with enclosing "not empty" check).

Also do not add additional "not empty" condition for `until` loops when
the given bound is a constant != MIN_VALUE.

compiler/testData/codegen/bytecodeText/forLoop/forIntInDownTo.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JVM_IR
 fun test(): Int {
     var sum = 0
     for (i in 4 downTo 1) {
@@ -12,5 +11,4 @@ fun test(): Int {
 // 0 getEnd
 // 0 getFirst
 // 0 getLast
-// 0 IF_ICMPEQ
-// 1 IF_ICMPLT
+// 1 IF_ICMP