[JVM] Port line number tests to stepping framework.

Allow specifying JVM and JVM_IR as well as shared expectations.

Add the method name to the step.

Discard steps in synthetic methods.

compiler/testData/debug/stepping/iincStepping.kt

@@ -27,21 +27,21 @@ fun box() {
 // that is the actual evaluation order.
 
 // LINENUMBERS
-// test.kt:3
-// test.kt:4
-// test.kt:5
-// test.kt:6
-// test.kt:7
-// test.kt:6
-// test.kt:8
-// test.kt:9
-// test.kt:10
-// test.kt:9
-// test.kt:11
-// test.kt:13
-// test.kt:12
-// test.kt:15
-// test.kt:16
-// test.kt:15
-// test.kt:14
-// test.kt:17
+// test.kt:3 box
+// test.kt:4 box
+// test.kt:5 box
+// test.kt:6 box
+// test.kt:7 box
+// test.kt:6 box
+// test.kt:8 box
+// test.kt:9 box
+// test.kt:10 box
+// test.kt:9 box
+// test.kt:11 box
+// test.kt:13 box
+// test.kt:12 box
+// test.kt:15 box
+// test.kt:16 box
+// test.kt:15 box
+// test.kt:14 box
+// test.kt:17 box