IDEA-168967 Intention to extract local variable created in stream operation lambda to separate stream step.

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/extractStreamMap/beforeBoxed.java

@@ -0,0 +1,12 @@
+// "Extract variable 'l' to separate stream step" "true"
+import java.util.*;
+import java.util.stream.*;
+
+public class Test {
+  Object[] testBoxed(int[] x) {
+    return Arrays.stream(x).mapToObj(i -> {
+      long <caret>l = i;
+      return l;
+    }).toArray();
+  }
+}