inference: ensure don't walk through explicitly specified type

java/java-psi-api/src/com/intellij/psi/LambdaUtil.java

@@ -825,7 +825,7 @@ public class LambdaUtil {
         break;
       }
 
-      final PsiCall psiCall = PsiTreeUtil.getParentOfType(parent, PsiCall.class, false, PsiMember.class);
+      final PsiCall psiCall = PsiTreeUtil.getParentOfType(parent, PsiCall.class, false, PsiMember.class, PsiVariable.class);
       if (psiCall == null) {
         break;
       }

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/additionalConstraints/NestedLambdaExpressionsWithTopStandaloneMethod.java

@@ -0,0 +1,20 @@
+
+import java.util.function.Supplier;
+
+interface DuallyParametric<A0> {
+  default <R> R match(Supplier<R> bFn) {
+    return null;
+  }
+
+  static <Ab> DuallyParametric<Ab> b() {
+    return null;
+  }
+
+  static void foldLeft(Runnable fn) {}
+
+  default void merge(DuallyParametric<A0> first) {
+    foldLeft(() -> {
+      Supplier<DuallyParametric<A0>> bDuallyParametricFunction = () -> first.match(() -> b());
+    });
+  }
+}

java/java-tests/testSrc/com/intellij/codeInsight/daemon/lambda/NewInferenceCollectingAdditionalConstraintsTest.java

@@ -39,6 +39,10 @@ public class NewInferenceCollectingAdditionalConstraintsTest extends LightDaemon
     doTest();
   }
 
+  public void testNestedLambdaExpressionsWithTopStandaloneMethod() throws Exception {
+    doTest();
+  }
+
   private void doTest() {
     IdeaTestUtil.setTestVersion(JavaSdkVersion.JDK_1_8, getModule(), getTestRootDisposable());
     doTest(BASE_PATH + "/" + getTestName(false) + ".java", true, false);