function checkExpression(node) {
			if (!node.delegate) {
				return;
			}

			const tokens = sourceCode.getFirstTokens(node, 3);
			const yieldToken = tokens[0];
			const starToken = tokens[1];
			const nextToken = tokens[2];

			checkSpacing("before", yieldToken, starToken);
			checkSpacing("after", starToken, nextToken);
		}
Enforces the spacing around the star if node is a yield* expression.
@param {ASTNode} node A yield expression node.
@returns {void}