[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/lambdaStepInlineWithDefaults.kt

@@ -31,12 +31,12 @@ fun box(): String {
 // test.kt:17
 
 // LINENUMBERS
-// test.kt:15
-// test.kt:3
-// test.kt:4
-// test.kt:3
-// test.kt:16
-// test.kt:7
-// test.kt:11
-// test.kt:8
-// test.kt:17
+// test.kt:15 box
+// test.kt:3 box
+// test.kt:4 box
+// test.kt:3 box
+// test.kt:16 box
+// test.kt:7 box
+// test.kt:11 box
+// test.kt:8 box
+// test.kt:17 box