function isLineBreak(node) {
      const isLiteral = node.type === 'Literal' || node.type === 'JSXText';
      const isMultiline = node.loc.start.line !== node.loc.end.line;
      const isWhiteSpaces = jsxUtil.isWhiteSpaces(node.value);

      return isLiteral && isMultiline && isWhiteSpaces;
    }
Checks to see if a node is a line break
@param {ASTNode} node The AST node being checked
@returns {boolean} True if node is a line break, false if not