src/vs/editor/common/model/tokenizationTextModelPart.ts/TokenizationTextModelPart/getTokenTypeIfInsertingCharacter
class TokenizationTextModelPart:	public getTokenTypeIfInsertingCharacter(
		lineNumber: number,
		column: number,
		character: string
	): StandardTokenType {
		const position = this._textModel.validatePosition(new Position(lineNumber, column));
		return this._tokenization.getTokenTypeIfInsertingCharacter(
			position,
			character
		);
	}