lambda: initial is assignable check; effectively final; acceptable context

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/params/FormalParams.java

@@ -11,8 +11,9 @@ class Foo {
   };
 
   void bazz() {
-    bar((String s) -> {
-      System.out.println(s);});
+    bar<error descr="'bar(I)' in 'Foo' cannot be applied to '(<lambda expression>)'">((String s) -> {
+      System.out.println(s);})</error>;
+    bar((int i) -> {System.out.println(i);});
   } 
   void bar(I i){}
 }

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/params/IncompatibleTypes.java

@@ -0,0 +1,7 @@
+class XXX {
+  Runnable bar() {
+    <error descr="Incompatible types. Found: '<lambda expression>', required: 'java.lang.Runnable'">return (o)->{
+      System.out.println();
+    };</error>
+  }
+}