Correct visibility for non-public SAM-adapters

compiler/testData/diagnostics/tests/syntheticExtensions/samAdapters/PackageLocal.kt

@@ -0,0 +1,13 @@
+// FILE: KotlinFile.kt
+package k
+
+import JavaClass
+
+fun foo(javaClass: JavaClass) {
+    javaClass.<!INVISIBLE_MEMBER!>doSomething<!> <!TYPE_MISMATCH!>{ }<!>
+}
+
+// FILE: JavaClass.java
+public class JavaClass {
+    void doSomething(Runnable runnable) { runnable.run(); }
+}