[IR] For loop lowering for CharacterSequence.indices.

compiler/testData/codegen/bytecodeText/forLoop/forInIndices/forInCharSequenceIndices.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JVM_IR
 fun test(s: CharSequence): Int {
     var result = 0
     for (i in s.indices) {
@@ -7,12 +6,22 @@ fun test(s: CharSequence): Int {
     return result
 }
 
+// JVM non-IR uses while.
+// JVM IR uses if + do-while.
+
 // 0 iterator
 // 0 getStart
 // 0 getEnd
 // 0 getFirst
 // 0 getLast
 
+// JVM_TEMPLATES
 // 0 IF_ICMPGT
 // 0 IF_ICMPEQ
 // 1 IF_ICMPGE
+// 1 IF
+
+// JVM_IR_TEMPLATES
+// 1 IF_ICMPGT
+// 1 IF_ICMPLE
+// 2 IF

compiler/testData/codegen/bytecodeText/forLoop/forInReversed/forInReversedCharSequenceIndices.kt

@@ -1,5 +1,3 @@
-// IGNORE_BACKEND: JVM_IR
-// NOTE: Enable once CharSequence.indices is handled
 import kotlin.test.*
 
 fun box(): String {
@@ -13,6 +11,9 @@ fun box(): String {
     return "OK"
 }
 
+// JVM non-IR uses while.
+// JVM IR uses if + do-while.
+
 // 0 reversed
 // 0 iterator
 // 0 getStart
@@ -20,5 +21,12 @@ fun box(): String {
 // 0 getFirst
 // 0 getLast
 // 0 getStep
-// 1 IF(_ICMPG|L)T
-// 1 IF
+
+// JVM_TEMPLATES
+// 1 IFLT
+// 1 IF
+
+// JVM_IR_TEMPLATES
+// 1 IF_ICMPGT
+// 1 IF_ICMPLE
+// 2 IF