Allow to turn the first parameter of a SAM-converted lambda into the receiver (KT-12848)

plugins/sam-with-receiver/sam-with-receiver-cli/testData/diagnostics/samConversionNoParameters.kt

@@ -0,0 +1,28 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER,-UNUSED_VARIABLE
+
+// FILE: Sam.java
+@SamWithReceiver
+public interface Sam {
+    void run();
+}
+
+// FILE: Exec.java
+public class Exec {
+    void exec(Sam sam) {}
+}
+
+// FILE: test.kt
+annotation class SamWithReceiver
+
+fun test() {
+    val e = Exec()
+
+    e.exec {
+        System.out.println("Hello, world!")
+    }
+
+    e.exec {
+        val a: String = <!NO_THIS!>this<!>
+        System.out.println(a)
+    }
+}