[FIR-TEST] Add new testdata generated after changes in previous commit

compiler/testData/diagnostics/tests/syntheticExtensions/samAdapters/Private.fir.kt

@@ -0,0 +1,10 @@
+// !WITH_NEW_INFERENCE
+// FILE: KotlinFile.kt
+fun foo(javaClass: JavaClass) {
+    javaClass.<!INAPPLICABLE_CANDIDATE!>doSomething<!> { }
+}
+
+// FILE: JavaClass.java
+public class JavaClass {
+    private void doSomething(Runnable runnable) { runnable.run(); }
+}