ForLoopsLowering: Add additional bytecode text tests for optimization of

unsigned progressions.

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

@@ -0,0 +1,41 @@
+// TARGET_BACKEND: JVM_IR
+// WITH_RUNTIME
+fun box(): String {
+    for (i in 1u..6u step 0) {
+    }
+
+    return "OK"
+}
+
+// For "step" progressions in JVM IR, if the step is constant and <= 0, the expression for step is replaced with an
+// IllegalArgumentException. The backend can then eliminate the entire loop and the rest of the function as dead code.
+//
+// Expected lowered form of loop (before bytecode optimization):
+//
+//   // Additional variables:
+//   val newStep = throw IllegalArgumentException("Step must be positive, was: 0.")
+//
+//   // Standard form of loop over progression
+//   var inductionVar = 1u
+//   val last = getProgressionLastElement(1u, 6u, newStep)
+//   val step = newStep
+//   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
+// 0 INVOKESTATIC kotlin/internal/ProgressionUtilKt.getProgressionLastElement
+// 1 NEW java/lang/IllegalArgumentException
+// 1 ATHROW
+// 0 IF
+// 0 ARETURN