lambda: do not override already inferred types from parent (IDEA-92733)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/highlighting/IncompatibleFormalParameterTypes.java

@@ -0,0 +1,19 @@
+class LambdaTest {
+
+  public void highlightsTheBug(Stream<String> stream) {
+    stream.flatMap((Block<? super String> sink, String element) -> {});
+  }
+
+  public interface Block<B> {
+    void apply(B t);
+  }
+
+  public interface Stream<S> {
+    <R> Stream<R> flatMap(FlatMapper<? super S, R> mapper);
+
+  }
+
+  public interface FlatMapper<F, R> {
+    void flatMapInto(Block<? super R> sink, F element);
+  }
+}