[codegeneration][debug info] enchance debugger behaviour for paramterless when

- generates tramboline like a11b07f6c3 on -Xg-generate-when-marker=enable
- fixes issue KT-33364

kotlin-native/backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2Native.kt

@@ -178,6 +178,15 @@ class K2Native : CLICompiler<K2NativeCompilerArguments>() {
                         null
                     }
                 })
+                putIfNotNull(GENERATE_WHEN_MARKER, when (val it = arguments.generateWhenMarkerString) {
+                    "enable" -> true
+                    "disable" -> false
+                    null -> null
+                    else -> {
+                        configuration.report(ERROR, "Unsupported -Xg-generate-when-marker= value: $it. Possible values are 'enable'/'disable'")
+                        null
+                    }
+                })
                 put(STATIC_FRAMEWORK, selectFrameworkType(configuration, arguments, outputKind))
                 put(OVERRIDE_CLANG_OPTIONS, arguments.clangOptions.toNonNullList())
                 put(ALLOCATION_MODE, arguments.allocator)

kotlin-native/backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2NativeCompilerArguments.kt

@@ -171,6 +171,12 @@ class K2NativeCompilerArguments : CommonCompilerArguments() {
             description = """generates marker of inlined function body on call site to make debugger breakpoint resolution more accurate"""
     )
     var generateInlinedFunctionMarkerString: String? = null
+    @Argument(
+            value = "-Xg-generate-when-marker",
+            valueDescription = "{disable|enable}",
+            description = """generates marker of when to make debugger breakpoint resolution more accurate"""
+    )
+    var generateWhenMarkerString: String? = null
 
 
     @Argument(