[JVM] Extend stepping tests with <clinit> stepping.

In addition, made the stepping information for constructor calls
consistent across JVM_IR and JVM. For JVM_IR that stepping behavior
is consistent for enum constructor calls in <clinit> for JVM it
is not.

compiler/testData/debug/stepping/constructorCall.kt

@@ -0,0 +1,33 @@
+// FILE: test.kt
+
+class A(val x: Int)
+
+fun box() {
+    A(1)
+    A(
+        2
+    )
+    A(3
+    )
+    A(
+        4)
+}
+
+// LINENUMBERS
+// test.kt:6 box
+// test.kt:3 <init>
+// test.kt:6 box
+// test.kt:7 box
+// test.kt:8 box
+// test.kt:7 box
+// test.kt:3 <init>
+// test.kt:7 box
+// test.kt:10 box
+// test.kt:3 <init>
+// test.kt:10 box
+// test.kt:12 box
+// test.kt:13 box
+// test.kt:12 box
+// test.kt:3 <init>
+// test.kt:12 box
+// test.kt:14 box