- Errors reported during transpilation now are created as TypeScript diagnostics, instead of being thrown as JavaScript errors. This makes TypeScriptToLua always try to generate valid code (even in presence of errors) and allows multiple errors to be reported in a single file:

<!-- prettier-ignore -->

```ts

for (var x in []) {}

```

```shell

# Before

$ tstl file.ts

file.ts:1:1 - error TSTL: Iterating over arrays with 'for ... in' is not allowed.

$ cat file.lua

error("Iterating over arrays with 'for ... in' is not allowed.")

```

```shell

# Now

$ tstl file.ts

file.ts:1:1 - error TSTL: Iterating over arrays with 'for ... in' is not allowed.

file.ts:1:6 - error TSTL: `var` declarations are not supported. Use `let` or `const` instead.

$ cat file.lua

for x in pairs({}) do

end

```