[K/Wasm] Introduce stepping tests for Wasm

compiler/testData/debug/stepping/beforeGotoToWhileStart.kt

@@ -1,3 +1,4 @@
+// IGNORE_BACKEND: WASM
 // FILE: test.kt
 
 var current = true
@@ -20,26 +21,26 @@ fun box() {
 }
 
 // EXPECTATIONS JVM JVM_IR
-// test.kt:19 box
-// test.kt:11 foo
-// test.kt:12 foo
-// test.kt:6 alternate
-// test.kt:7 alternate
-// test.kt:12 foo
-// test.kt:11 foo
-// test.kt:12 foo
-// test.kt:6 alternate
-// test.kt:7 alternate
+// test.kt:20 box
 // test.kt:12 foo
 // test.kt:13 foo
-// test.kt:16 foo
-// test.kt:20 box
+// test.kt:7 alternate
+// test.kt:8 alternate
+// test.kt:13 foo
+// test.kt:12 foo
+// test.kt:13 foo
+// test.kt:7 alternate
+// test.kt:8 alternate
+// test.kt:13 foo
+// test.kt:14 foo
+// test.kt:17 foo
+// test.kt:21 box
 
 // EXPECTATIONS JS_IR
-// test.kt:19 box
-// test.kt:6 alternate
-// test.kt:7 alternate
-// test.kt:6 alternate
-// test.kt:7 alternate
-// test.kt:16 foo
 // test.kt:20 box
+// test.kt:7 alternate
+// test.kt:8 alternate
+// test.kt:7 alternate
+// test.kt:8 alternate
+// test.kt:17 foo
+// test.kt:21 box