function requiresExtraParens(node) {
			return (
				node.parent &&
				parenthesized[node.parent.type] &&
				node === node.parent[parenthesized[node.parent.type]]
			);
		}
Determines whether a node is required by the grammar to be wrapped in
parens, e.g. the test of an if statement.
@param {ASTNode} node The AST node
@returns {boolean} True if parens around node belong to parent node.