MathML Test : Lines and Bars

This is a test to check if lines and bars can be displayed.

Entity Name	Rendering	Stretchy
HorizontalLine	$\begin{matrix} ─ & \begin{matrix} a \\ b \\ c \end{matrix} \\ sometext & x \end{matrix}$	true
VerticalLine ; `"\|"`	$\begin{matrix} \| & \begin{matrix} a \\ b \\ c \end{matrix} \\ sometext & x \end{matrix}$	true
VerticalBar	$\begin{matrix} ∣ & \begin{matrix} a \\ b \\ c \end{matrix} \\ sometext & x \end{matrix}$	false
VerticalSeparator	$\begin{matrix} ❘ & \begin{matrix} a \\ b \\ c \end{matrix} \\ sometext & x \end{matrix}$	true
Backslash	$\begin{matrix} ∖ & \begin{matrix} a \\ b \\ c \end{matrix} \\ sometext & x \end{matrix}$	true
`"/"`	$\begin{matrix} / & \begin{matrix} a \\ b \\ c \end{matrix} \\ sometext & x \end{matrix}$	true