method ref: ensure top substitutor is not overridden with raw replacement from second method ref search (IDEA-158636)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newMethodRef/MethodReferenceSecondSearchDontInfluenceTopSiteSubstitutor.java

@@ -0,0 +1,13 @@
+package pi;
+
+import java.util.stream.Stream;
+
+abstract class Foo<T> {
+  public abstract <X> Foo<X> getAssociatedFoo();
+
+  public abstract static class Bar<Z> {
+    public Stream<Foo<Object>> getAssociatedFoos(Stream<Foo<Z>> stream) {
+      return stream.map(Foo::getAssociatedFoo);
+    }
+  }
+}