Semicolons not handled as expected

[keeptyping]

Issue Summary

Semicolons not handled as expected.

Environment

• OS Info: macOS Version 10.13.1 (Build 17B48)
• Yanagiba/swift-ast version: 0.4.1

Reproduction Steps

Every const_decl/var_decl which ends with a semicolon is treated as an error.

Sample code

struct SemicolonIssue {
    
    private let issue = "";
    
}

Command to run swift-ast with the code above:
swift-ast SemicolonIssue.swift

Expected Result

A successfully parsed TopLevelDeclaration.

Actual Behavior

The parser failed with a badDeclaration error.

SemicolonIssue.swift:13:25 fatal: badDeclaration

[petermichaux]

I'm using SwiftKotlin (https://github.com/angelolloqui/SwiftKotlin) and unfortunately it does not accept semicolons in swift code (see angelolloqui/SwiftKotlin#45). I think it because swift-ast does not accept semicolons. I hope swift-ast can be adjusted to accept semicolons.