src/vs/editor/common/cursor/cursorWordOperations.ts/WordOperations/_deleteWordRightWhitespace
class WordOperations:	protected static _deleteWordRightWhitespace(model: ICursorSimpleModel, position: Position): Range | null {
		const lineContent = model.getLineContent(position.lineNumber);
		const startIndex = position.column - 1;
		const firstNonWhitespace = this._findFirstNonWhitespaceChar(lineContent, startIndex);
		if (startIndex + 1 < firstNonWhitespace) {
			// bingo
			return new Range(position.lineNumber, position.column, position.lineNumber, firstNonWhitespace + 1);
		}
		return null;
	}