if(node instanceof Block) {
Block block = (Block) node;
element = element.add(block, 0);
this.lastCheckPoint = block.sourceEnd + 1;
} else if(node instanceof LocalDeclaration) {
LocalDeclaration statement = (LocalDeclaration) node;
element = element.add(statement, 0);
this.lastCheckPoint = statement.sourceEnd + 1;
} else if(node instanceof Expression) {
if(node instanceof Assignment ||
node instanceof PrefixExpression ||