Better handle incomplete try/catch/finally

* Improve error mapping
* Add recovered finally block when missing catch&finally

Author: mickaelistria

org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/dom/ConverterTestSetup.java

@@ -1064,6 +1064,11 @@ private boolean matchesAlternateMessage(String original, String expected, int pr
 			return false;
 		case IProblem.NotAnnotationType:
 			return (arguments[0] + " is not an annotation type").equals(expected);
+		case IProblem.Syntax:
+			return original.equals(switch (expected) {
+				case "Syntax error, insert \"Finally\" to complete BlockStatements" -> "'try' without 'catch', 'finally' or resource declarations";
+				default -> "";
+			});
 		default:
 			return false;
 		}