inference: substitution for captures (IDEA-186844)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/graphInference/NestedCallsWithFreshVariables.java

@@ -0,0 +1,20 @@
+
+import java.util.function.Supplier;
+import java.util.stream.Stream;
+
+class ExceptionStream {
+
+  void foo(Supplier<Stream<String>> mapper) {
+    bar(flatMap  (transform(mapper)));
+  }
+
+  <R> Stream<R> flatMap(Supplier<? extends Stream<R>> mapper) {
+    return null;
+  }
+
+  void bar(Stream<String> s) {}
+
+  <T> Supplier<? extends T> transform(Supplier<T> function) {
+    return function;
+  }
+}