ReturnReplacementContext#extractTail: leave blank line in place (IDEA-219142)

GitOrigin-RevId: 30a93c99fc47f4d277b45cabe9c72b4a41b05846

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/convertToSingleReturn/afterBlankLine.java

@@ -0,0 +1,16 @@
+// "Transform body to single exit-point form" "true"
+class Test {
+    String test(String s) {
+        String result = null;
+        try {
+            Integer.parseInt(s);
+        } catch (NumberFormatException ex) {
+            result = "Cannot parse number";
+        }
+        if (result == null) {
+            result = "Ok";
+        }
+
+        return result;
+    }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/convertToSingleReturn/beforeBlankLine.java

@@ -0,0 +1,13 @@
+// "Transform body to single exit-point form" "true"
+class Test {
+    String <caret>test(String s) {
+        try {
+            Integer.parseInt(s);
+        }
+        catch (NumberFormatException ex) {
+            return "Cannot parse number";
+        }
+
+        return "Ok";
+    }
+}