ForLoopsLowering: Add additional bytecode text tests for optimization of

unsigned progressions.

compiler/testData/codegen/bytecodeText/forLoop/unsigned/stepThenDifferentStep.kt

@@ -0,0 +1,45 @@
+// TARGET_BACKEND: JVM_IR
+// WITH_RUNTIME
+fun box(): String {
+    for (i in 1u..7u step 3 step 2) {
+    }
+
+    return "OK"
+}
+
+// For "step" progressions in JVM IR, a call to getProgressionLastElement() is made to compute the "last" value. This is done for each
+// nested call to "step".
+// If the step is non-constant, there is a check that it is > 0, and if not, an IllegalArgumentException is thrown. However, when the
+// step is constant and > 0, this check does not need to be added.
+//
+// Expected lowered form of loop:
+//
+//   // Additional variables:
+//   val outerNestedLast = getProgressionLastElement(1u, 7u, 3)
+//
+//   // Standard form of loop over progression
+//   var inductionVar = 1u
+//   val last = getProgressionLastElement(1u, outerNestedLast, 2)
+//   val step = 2
+//   if (inductionVar <= last) {
+//     // Loop is not empty
+//     do {
+//       val i = inductionVar
+//       inductionVar += step
+//       // Loop body
+//     } while (i != last)
+//   }
+
+// 0 iterator
+// 0 getStart
+// 0 getEnd
+// 0 getFirst
+// 0 getLast
+// 0 getStep
+// 2 INVOKESTATIC kotlin/internal/UProgressionUtilKt.getProgressionLastElement
+// 0 NEW java/lang/IllegalArgumentException
+// 0 ATHROW
+// 1 INVOKESTATIC kotlin/UnsignedKt.uintCompare
+// 1 IFGT
+// 1 IF_ICMPNE
+// 2 IF