[JVM] Port Stepping and LocalVariable tests to new test infra.

This is in preparation for enabling the tests for FIR which will
be easier to do when the tests are on the new infrastructure.

compiler/testData/debug/stepping/whenComplicatedSubject.kt

@@ -21,7 +21,7 @@ fun box() {
 // The JVM_IR backend optimizes the inner when to a switch and therefore goes directly to the
 // right case without stepping through evaluation of each condition.
 
-// LINENUMBERS
+// EXPECTATIONS
 // test.kt:16 box
 // test.kt:5 foo
 // test.kt:6 foo
@@ -30,18 +30,18 @@ fun box() {
 // test.kt:13 foo
 // test.kt:17 box
 // test.kt:5 foo
-// LINENUMBERS JVM
+// EXPECTATIONS JVM
 // test.kt:6 foo
-// LINENUMBERS
+// EXPECTATIONS
 // test.kt:7 foo
 // test.kt:4 foo
 // test.kt:13 foo
 // test.kt:18 box
 // test.kt:5 foo
-// LINENUMBERS JVM
+// EXPECTATIONS JVM
 // test.kt:6 foo
 // test.kt:7 foo
-// LINENUMBERS
+// EXPECTATIONS
 // test.kt:8 foo
 // test.kt:4 foo
 // test.kt:10 foo