J2K: replace overloads with optional parameters not only for constructors but for methods too

j2k/testData/fileOrElement/overloads/AccessorToDrop.java

@@ -0,0 +1,15 @@
+class A {
+    private int field = 0;
+
+    public int getField() {
+        return field;
+    }
+
+    public void setField(int field) {
+        this.field = field;
+    }
+
+    public void setField() {
+        setField(0);
+    }
+}