Use stricter assertions in for-loop bytecode text tests.

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

@@ -1,16 +1,21 @@
 fun intArray() = intArrayOf(0, 0, 0, 0)
 fun longArray() = longArrayOf(0, 0, 0, 0)
 
-fun f() {
+fun f(): Int {
+    var n = 0
     for (i in intArray()) {
+        n++
     }
 
     for (i in longArray()) {
+        n++
     }
+    return n
 }
 
 // 0 iterator
 // 1 INVOKESTATIC .*\.intArray \(\)
 // 1 INVOKESTATIC .*\.longArray \(\)
 // 2 ARRAYLENGTH
-// 2 IF_ICMP
+// 2 IF_ICMPGE
+// 2 IF