ctests: univert aas_sample with LuaTeX test.

The missing character problem is fixed upstream.

Also fix the scaling of the \sun-symbol-index by wrapping the symbol in \text.
(wasysym's \sun is valid in text and math mode. LyX  currently adds a spurious \ensuremath.)

development/autotests/invertedTests

@@ -204,12 +204,6 @@ export/examples/H-P-statements_.*_systemF
 # http://tex.stackexchange.com/questions/202142/problems-compiling-tufte-title-page-in-xelatex
 export/examples/(|de/|es/)tufte-(book|handout)_(dvi.*|pdf|pdf3|pdf4.*)
 
-# Wasysym - LuaTeX incompatibility
-# Missing character reported for $_\sun$
-# (the sun-character is printed in \normalsize (i.e. not scaled)
-# with any export format -- only LuaTeX reports a missing character).
-export/examples/aas_sample_(dvi3|pdf5)_(texF|systemF)
-
 # These files use packages that are not compatible with the newest LuaTeX. We
 # could potentially fix these by loading the luatex85 package early in the
 # LyX-generated preamble, but it seems it's better to wait until the packages

lib/examples/aas_sample.lyx

@@ -778,7 +778,7 @@ reference "tbl-2"
 .
  It is not clear how these sorts of analyses may affect determination of
  
-\begin_inset Formula $M_{\sun}$
+\begin_inset Formula $M_{\text{\sun}}$
 \end_inset
 
 , but the assumption is that the alternate results should be less than 90°
@@ -798,19 +798,11 @@ ion{Ca}{2}
 
 .
  Roughly 
-\begin_inset ERT
-status collapsed
-
-\begin_layout Plain Layout
-
-
-\backslash
-slantfrac{4}{5}
-\end_layout
-
+\begin_inset Formula $\nicefrac{4}{5}$
 \end_inset
 
  of the electronically submitted abstracts for AAS meetings are error-free.
+ 
 \end_layout
 
 \begin_layout Acknowledgements