Inspection: Expression can be folded into Stream chain (IDEA-187123)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/foldIntoStream/afterSumChain.java

@@ -0,0 +1,8 @@
+import java.util.stream.Stream;
+
+// "Fold expression into Stream chain" "true"
+class Test {
+  int foo(String a, String b, String c, String d) {
+    return Stream.of(a, b, c, d).mapToInt(String::length).sum();
+  }
+}