if (a<b) matched as unclosed typescriptTypeArguments

[groner]

I found the first problem (unclosed typescriptTypeArguments) working backwards from the second problem (unclosed typescriptTemplateLiteralType), so I'm describing them both here.

declare let a: string;
declare let b: string;
declare const definitelyNotInsideATemplateLiteral: () => void;

// a<b matches as typescript
if (a<b) {
  `${a}`;
}

definitelyNotInsideATemplateLiteral();

Here's the appearance in nvim, using the solarized colorscheme.

Evaluating map(synstack(line('.'), col('.')), 'synIDattr(v:val, "name")') at various points:

The start of the template literal line:
['typescriptConditionalParen', 'typescriptTypeArguments', 'typescriptObjectType']

The start of the function call line:
['typescriptConditionalParen', 'typescriptTypeArguments', 'typescriptTemplateLiteralType']

[groner]

I don't think this has to do with the arrow function. The arrow function appearing in the example is only there so typescript errors don't clutter things. It could be typed Function and the issue would still occur.

Changing a<b to a <b stop it from matching as typescriptTypeArguments.