lambda: return type checks initial

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

@@ -16,4 +16,20 @@ class Foo {
     bar((int i) -> {System.out.println(i);});
   } 
   void bar(I i){}
+}
+
+class ReturnTypeCompatibility {
+
+    interface I1<L> {
+        L m(L x);
+    }
+
+    static <P> void call(I1<P> i2) {
+        i2.m(null);
+    }
+
+    public static void main(String[] args) {
+        call((String i)->{ return i;});
+        call<error descr="'call(ReturnTypeCompatibility.I1<java.lang.Object>)' in 'ReturnTypeCompatibility' cannot be applied to '(<lambda expression>)'">((int i)->{ return i;})</error>;
+    }
 }