function hasStringLiteral(node){if(isConcatenation(node)){// `left` is deeper than `right` normally.
return hasStringLiteral(node.right)||hasStringLiteral(node.left);}return astUtils.isStringLiteral(node);}
Checks whether or not a given binary expression has string literals.
@param {ASTNode} node - A node to check.
@returns {boolean} `true` if the node has string literals.