function validateExpression(node) {
			if (node.body.type === "BlockStatement") {
				return;
			}

			const arrowToken = sourceCode.getTokenBefore(
				node.body,
				isNotOpeningParenToken,
			);
			const firstTokenOfBody = sourceCode.getTokenAfter(arrowToken);

			if (
				arrowToken.loc.end.line === firstTokenOfBody.loc.start.line &&
				option === "below"
			) {
				context.report({
					node: firstTokenOfBody,
					messageId: "expected",
					fix: fixer =>
						fixer.insertTextBefore(firstTokenOfBody, "\n"),
				});
			} else if (
				arrowToken.loc.end.line !== firstTokenOfBody.loc.start.line &&
				option === "beside"
			) {
				context.report({
					node: firstTokenOfBody,
					messageId: "unexpected",
					fix(fixer) {
						if (
							sourceCode.getFirstTokenBetween(
								arrowToken,
								firstTokenOfBody,
								{
									includeComments: true,
									filter: isCommentToken,
								},
							)
						) {
							return null;
						}

						return fixer.replaceTextRange(
							[arrowToken.range[1], firstTokenOfBody.range[0]],
							" ",
						);
					},
				});
			}
		}
Validates the location of an arrow function body
@param {ASTNode} node The arrow function body
@returns {void}