[IR] Correct line number on suspend function with implicit unit return

compiler/testData/debug/stepping/suspendFunWithLambdaParameter.kt

@@ -0,0 +1,19 @@
+// WITH_COROUTINES
+// FILE: test.kt
+suspend fun foo(block: Long.() -> String): String {
+    return 1L.block()
+}
+
+suspend fun box() {
+    foo {
+        "OK"
+    }
+}
+
+// LINENUMBERS
+// test.kt:8 box
+// test.kt:4 foo
+// test.kt:9 invoke
+// test.kt:4 foo
+// test.kt:8 box
+// test.kt:11 box

compiler/testData/debug/stepping/suspendFunWithSuspendLambdaParameter.kt

@@ -0,0 +1,25 @@
+// WITH_COROUTINES
+// FILE: test.kt
+suspend fun foo(block: suspend Long.() -> String): String {
+    return 1L.block()
+}
+
+suspend fun box() {
+    foo {
+        "OK"
+    }
+}
+
+// LINENUMBERS
+// test.kt:8 box
+// test.kt:4 foo
+// CoroutineUtil.kt:28 getContext
+// test.kt:-1 <init>
+// test.kt:-1 create
+// test.kt:-1 invoke
+// test.kt:8 invokeSuspend
+// test.kt:9 invokeSuspend
+// test.kt:-1 invoke
+// test.kt:4 foo
+// test.kt:8 box
+// test.kt:11 box