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/afterIsEmpty.java

@@ -0,0 +1,19 @@
+// "Fix all 'Optional can be replaced with sequence of if statements' problems in file" "true"
+
+class Test {
+
+  boolean isPresent(String in) {
+      if (in == null) throw new NullPointerException();
+      String s = in.substring(3);
+      if (s.startsWith("1")) return true;
+      return false;
+  }
+
+  boolean isEmpty(String in) {
+      if (in == null) throw new NullPointerException();
+      String s = in.substring(3);
+      if (s.startsWith("1")) return false;
+      return true;
+  }
+
+}