[SamWithReceiver] Fix test configuration and testdata

plugins/sam-with-receiver/testData/diagnostics/singleParameterWithoutAnnotation.fir.kt

@@ -0,0 +1,16 @@
+// FILE: Sam.java
+public interface Sam {
+    void run(String a);
+}
+
+// FILE: test.kt
+fun test() {
+    Sam { a ->
+        System.out.println(a)
+    }
+
+    Sam {
+        val a = <!NO_THIS!>this<!>
+        System.out.<!OVERLOAD_RESOLUTION_AMBIGUITY!>println<!>(a)
+    }
+}