Add a JVM backend debug information test, this commit is for verifying

line numbers for stepping.

Running JVM instance and read stepping events from it to verify with the
test data.

compiler/testData/debug/stepping/if.kt

@@ -0,0 +1,26 @@
+//FILE: test.kt
+fun box(): Int {
+    if (
+        getB() ==
+        getA())
+        return 0
+    return getB()
+}
+
+fun getA() = 3
+
+inline fun getB(): Int {
+    return 1
+}
+
+// IGNORE_BACKEND: JVM_IR
+// old backend is missing a line number after return from inline function call, actually IR backend results seems more right.
+
+// LINENUMBERS
+// TestKt.box():4
+// TestKt.box():13
+// TestKt.box():5
+// TestKt.getA():10
+// TestKt.box():5
+// TestKt.box():7
+// TestKt.box():13