Related spans on missing list/block/function body terminators

[DanielRosenwasser]

From @robpalme: https://twitter.com/robpalmer2/status/1190383568612184064

function base_init() {
{
    
}

    function me() {
    
}

https://www.typescriptlang.org/play/?ssl=8&ssc=1&pln=9&pc=1#code/GYVwdgxgLglg9mABAIwIYGcCmB9GYZQAUAlIgN4BQliNiFAvhRbYqJLAogLaYnnO0GFIA

When an ending curly brace (or similar) is missing, we can give some better hints to the user.

Specifically, we can use a related span and explain where the corresponding starting point is:

function base_init() {
                     ~
The parser expected to find a '}' to match the '{' token here.

[DanielRosenwasser]

Thanks @Toxyxer! A great follow-up would be to make this work for

• } braces in object literals and namespaces
• Parentheses in
  • parenthesized expressions
  • function calls
  • new expressions
• Square brackets for arrays