Program
TryStatement
BlockStatement
ExpressionStatement
CallExpression
Identifier (foo)
IfStatement
Identifier (a)
CatchClause
Identifier (err)
BlockStatement
ExpressionStatement
CallExpression
Identifier (hoge)
Identifier (err)
BlockStatement
ThrowStatement
NewExpression
Identifier (Error)
ExpressionStatement
CallExpression
Identifier (bar)
ExpressionStatement
CallExpression
Identifier (last)