src/vs/editor/common/services/semanticTokensProviderStyling.ts/HashTable/_add
class HashTable:	private _add(element: HashTableEntry): void {
		const hash = this._hashFunc(element.tokenTypeIndex, element.tokenModifierSet, element.languageId);
		element.next = this._elements[hash];
		this._elements[hash] = element;
	}