getDeclaredVariables(node) {
		return this.scopeManager.getDeclaredVariables(node);
	}
Get the variables that `node` defines.
This is a convenience method that passes through
to the same method on the `scopeManager`.
@param {ASTNode} node The node for which the variables are obtained.
@returns {Array<Variable>} An array of variable nodes representing
     the variables that `node` defines.