Use selnolig to selectively suppress ligatures with lualatex.

Closes #6534

data/templates/default.latex

@@ -339,6 +339,9 @@ $if(babel-newcommands)$
 $endif$
 \fi
 $endif$
+\ifluatex
+  \usepackage{selnolig}  % disable illegal ligatures
+\fi
 $if(dir)$
 \ifxetex
   % Load bidi as late as possible as it modifies e.g. graphicx

test/lhs-test.latex

@@ -81,6 +81,9 @@
 \providecommand{\tightlist}{%
   \setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}}
 \setcounter{secnumdepth}{-\maxdimen} % remove section numbering
+\ifluatex
+  \usepackage{selnolig}  % disable illegal ligatures
+\fi
 
 \author{}
 \date{}

test/lhs-test.latex+lhs

@@ -48,6 +48,9 @@
 \providecommand{\tightlist}{%
   \setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}}
 \setcounter{secnumdepth}{-\maxdimen} % remove section numbering
+\ifluatex
+  \usepackage{selnolig}  % disable illegal ligatures
+\fi
 
 \author{}
 \date{}

test/writer.latex

@@ -63,6 +63,9 @@
 \providecommand{\tightlist}{%
   \setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}}
 \setcounter{secnumdepth}{-\maxdimen} % remove section numbering
+\ifluatex
+  \usepackage{selnolig}  % disable illegal ligatures
+\fi
 
 \title{Pandoc Test Suite}
 \author{John MacFarlane \and Anonymous}

test/writers-lang-and-dir.latex

@@ -66,6 +66,9 @@
   \newcommand{\textfrench}[2][]{\foreignlanguage{french}{#2}}
   \newenvironment{french}[2][]{\begin{otherlanguage}{french}}{\end{otherlanguage}}
 \fi
+\ifluatex
+  \usepackage{selnolig}  % disable illegal ligatures
+\fi
 \ifxetex
   % Load bidi as late as possible as it modifies e.g. graphicx
   \usepackage{bidi}