Cannot compile snippets with interfaces that have the same method name

[achingbrain]

We have the following in our changelog:

* All interfaces now need to use method signature style rather than property function style

eg:
before
```ts
interface Foo {
  bar: (baz: number) => void
}
```
after
```ts
interface Foo {
  bar(baz: number): void
}
```

typescript-docs-verifier fails to compile this with:

Error compiling example code block 2 in file CHANGELOG.md:
  ⨯ Unable to compile TypeScript:
      CHANGELOG.md → Code Block 2:2:3 - error TS2300: Duplicate identifier 'bar'.
      
      2   bar(baz: number): void
          ~~~
      
        CHANGELOG.md → Code Block 2:2:3
          2   bar: (baz: number) => void
              ~~~
          'bar' was also declared here.
      
Original code:
     1| interface Foo {
     2|   bar(baz: number): void
     3| }
     4| 

I guess it's combining the two interface definitions?

Is there anyway to stop this from happening or otherwise treat the snippets as independent?

[paulbrimicombe]

@achingbrain I've just tried to replicate this with the most recent version of the library and there doesn't seem to be an error — can you confirm whether this is still an issue for you please?

[achingbrain]

It's still broken. If you want to replicate it:

1. clone https://github.com/ipfs/aegir
2. Install deps: npm i
3. In CHANGELOG.md, replace the instances of both interface MyInterfaceBefore and interface MyInterfaceAfter with interface Foo
4. Run the doc verifier: npm run doc-check

% npm run doc-check

> aegir@45.0.9 doc-check
> node src/index.js doc-check

[12:26:56] typescript-doc-verify [started]
Error compiling example code block 2 in file CHANGELOG.md:
  ⨯ Unable to compile TypeScript:
      CHANGELOG.md → Code Block 2:2:3 - error TS2300: Duplicate identifier 'bar'.
      
      2   bar (baz: number): void
          ~~~
      
        CHANGELOG.md → Code Block 2:2:3
          2   bar: (baz: number) => void
              ~~~
          'bar' was also declared here.
      
Original code:
     1| interface Foo {
     2|   bar (baz: number): void
     3| }
     4| 
[12:26:57] typescript-doc-verify [completed]

[paulbrimicombe]

OK I'll take a look now then.

[paulbrimicombe]

The reason why I couldn't replicate this was that the error seems to be a bit intermittent. I've made a change to use a separate compiler instance for each snippet which seems to fix the issue — can you try v2.5.3 please and let me know if it's better with that version? And thanks for the quick response on this one!

[achingbrain]

v2.5.3 seems to have fixed it, thanks!