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/beforeMap.java

@@ -0,0 +1,29 @@
+// "Fix all 'Optional can be replaced with sequence of if statements' problems in file" "true"
+
+class Test {
+
+  String checkForNullable(String in) {
+    return Optional.<caret>of(in).map(s -> getStrOrNull(s)).get();
+  }
+
+  String checkIsRemovedForNotNull(String in) {
+    return Optional.of(in).map(s -> id(s)).filter(s -> s.length() > 2).get();
+  }
+
+  String twoMapsProduceTwoVariables(String in, boolean b) {
+    return Optional.of(in).map(s -> id(s)).map(s -> getStrIfTrue(s, b)).filter(s -> s.length > 2).get();
+  }
+
+  private String id(String s) {
+    return s;
+  }
+
+  private String getStrOrNull(String s) {
+    return s.length() > 2 ? s : null;
+  }
+
+  private String getStrIfTrue(String s, boolean b) {
+    return b ? s : null;
+  }
+
+}