Compiler: https://github.com/narendrasss/compiler/
一个简单的JavaScript编译器，支持解析：
- FunctionDeclaration
- Identifier
- BlockStatement
- ExpressionStatement
- CallExpression
- MemberExpression
TODO:
- Comment
- VariableDeclaration
- IfStatement
- ConditionalExpression
- ArrayExpression
- ClassDeclaration
- BreakStatement
- ContinueStatement
- ReturnStatement
- ThrowStatement
- more