Many LaTeX backend fixes

After this commit, we can run with `--latex` on all boot libraries
without crashing (although the generated LaTeX still fails to compile in
a handful of larger packages like `ghc` and `base`).

 * Add newlines after all block elements in LaTeX. This is important to
   prevent the final output from being more an more indented. See the
   `latext-test/src/Example` test case for a sample of this.

 * Support associated types in class declarations (but not yet defaults)

 * Several small issues for producing compiling LaTeX;
     - avoid empy `\haddockbeginargs` lists (ex: `type family Any`)
     - properly escape identifiers depending on context (ex: `Int#`)
     - add `vbox` around `itemize`/`enumerate` (so they can be in tables)

 * Several spacing fixes:
     - limit the width of `Pretty`-arranged monospaced code
     - cut out extra space characters in export lists
     - only escape spaces if there are _multiple_ spaces
     - allow type signatures to be multiline (even without docs)

 * Remove uninteresting and repetitive `main.tex`/`haddock.sty` files
   from `latex-test` test reference output.

Fixes #935, #929 (LaTeX docs for `text` build & compile)
Fixes #727, #930 (I think both are really about type families...)

1 files changed, 13 insertions, 13 deletions

diff --git a/latex-test/ref/UnboxedStuff/UnboxedStuff.tex b/latex-test/ref/UnboxedStuff/UnboxedStuff.tex
index 36d5c12b..990d2a5b 100644
--- a/latex-test/ref/UnboxedStuff/UnboxedStuff.tex
+++ b/latex-test/ref/UnboxedStuff/UnboxedStuff.tex
@@ -3,34 +3,34 @@
 \haddockbeginheader
 {\haddockverb\begin{verbatim}
 module UnboxedStuff (
-    X,  Y,  Z,  unboxedUnit,  unboxedTuple,  unboxedSum
+    X, Y, Z, unboxedUnit, unboxedTuple, unboxedSum
   ) where\end{verbatim}}
 \haddockendheader
 
 \begin{haddockdesc}
 \item[\begin{tabular}{@{}l}
-data\ X
+data X
 \end{tabular}]
 \end{haddockdesc}
 \begin{haddockdesc}
 \item[\begin{tabular}{@{}l}
-data\ Y
+data Y
 \end{tabular}]
 \end{haddockdesc}
 \begin{haddockdesc}
 \item[\begin{tabular}{@{}l}
-data\ Z
+data Z
 \end{tabular}]
 \end{haddockdesc}
 \section{Unboxed type constructors}
 \begin{haddockdesc}
-\item[
-unboxedUnit\ ::\ ({\char '43}\ {\char '43})\ ->\ ({\char '43}\ {\char '43})
-]
-\item[
-unboxedTuple\ ::\ ({\char '43}\ X,\ Y\ {\char '43})\ ->\ ({\char '43}\ X,\ Y,\ Z\ {\char '43})
-]
-\item[
-unboxedSum\ ::\ ({\char '43}\ X\ |\ Y\ {\char '43})\ ->\ ({\char '43}\ X\ |\ Y\ |\ Z\ {\char '43})
-]
+\item[\begin{tabular}{@{}l}
+unboxedUnit :: ({\char '43} {\char '43}) -> ({\char '43} {\char '43})
+\end{tabular}]
+\item[\begin{tabular}{@{}l}
+unboxedTuple :: ({\char '43} X, Y {\char '43}) -> ({\char '43} X, Y, Z {\char '43})
+\end{tabular}]
+\item[\begin{tabular}{@{}l}
+unboxedSum :: ({\char '43} X | Y {\char '43}) -> ({\char '43} X | Y | Z {\char '43})
+\end{tabular}]
 \end{haddockdesc}
\ No newline at end of file