Incorrect highlighting with function with multiple generic arguments

[mjbvz]

microsoft/vscode#65211

TS and JS Grammar Extension version: latest

Code
For the TYpeScript

const children = [].map<Set<Map<number, string>>>(element => {
	if (!this.identityProvider) {
		return element;
	}
	return element;
});

Colorization is incorrect for some elements inside the lambda body