OptionalToIfInspection: added inspection to desugar optional chain to sequence of if statements (IDEA-212269)

GitOrigin-RevId: c83b70e05544529b3dfffe24bc87997910edcb56

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/optionalToIf/afterStream.java

@@ -0,0 +1,14 @@
+// "Fix all 'Optional can be replaced with sequence of if statements' problems in file" "true"
+
+import java.util.stream.Stream;
+
+class Test {
+
+  void stream(String in) {
+      Stream<String> out = Stream.empty();
+      if (in == null) throw new NullPointerException();
+      String s = in.length() > 2 ? in : null;
+      if (s != null) out = Stream.of(s);
+  }
+
+}