fix JsonProperty without overridden name

Author: angryziber

src/main/java/jvm2dts/Converter.java

@@ -131,8 +131,10 @@ private void processProperty(String propertyName, Method method, StringBuilder o
     for (Annotation annotation : annotations) {
       String annotationName = annotation.annotationType().getSimpleName();
       if (annotationName.equals("JsonIgnore")) return;
-      else if (annotationName.equals("JsonProperty"))
-        propertyName = (String) annotation.getClass().getMethod("value").invoke(annotation);
+      else if (annotationName.equals("JsonProperty")) {
+        var overriddenName = (String) annotation.getClass().getMethod("value").invoke(annotation);
+        if (!overriddenName.isEmpty()) propertyName = overriddenName;
+      }
     }
 
     fieldBuffer.append(propertyName);

src/test/java/jvm2dts/ClassConverterTest.java

@@ -74,7 +74,7 @@ void record() {
     assertThat(converter.convert(Record.class)).isEqualTo("interface Record {" +
       "isCool: boolean; " +
       "hello: string; " +
-      "notIncluded: number; " +
+      "notIncluded: boolean; " +
       "world: string;}");
   }
 
@@ -155,5 +155,5 @@ interface AnyId {
 }
 
 record Record(String hello, String world, boolean isCool) {
-  public int notIncluded() { return 0; }
+  @JsonProperty public boolean notIncluded() { return false; }
 }