Add new tests for step progressions and fix existing tests.

compiler/testData/codegen/bytecodeText/intProgressionNoBoxing.kt

@@ -0,0 +1,20 @@
+fun foo() {
+    for (i in 1..2 step 4) {}
+}
+
+// JVM non-IR does NOT specifically handle "step" progressions. The stepped progression in the above code are constructed and its
+// first/last/step properties are retrieved.
+// JVM IR has an optimized handler for "step" progressions and elides the construction of the stepped progressions.
+
+// JVM_TEMPLATES
+// 1 INVOKEVIRTUAL kotlin/ranges/IntProgression.getFirst \(\)I
+// 1 getFirst
+// 1 INVOKEVIRTUAL kotlin/ranges/IntProgression.getLast \(\)I
+// 1 getLast
+// 1 INVOKEVIRTUAL kotlin/ranges/IntProgression.getStep \(\)I
+// 1 getStep
+
+// JVM_IR_TEMPLATES
+// 0 getFirst
+// 0 getLast
+// 0 getStep