Fix haddock failures (fixes #2216)

src/ShellCheck/Analytics.hs

@@ -4155,11 +4155,11 @@ checkEqualsInCommand params originalToken =
                     _ | "===" `isPrefixOf` s -> borderMsg (getId originalToken)
                     _ -> prefixMsg (getId cmd)
 
-            -- $var==42
+            -- '$var==42'
             _ | "==" `isInfixOf` s ->
                 badComparisonMsg (getId cmd)
 
-            -- ${foo[x]}=42 and $foo=42
+            -- '${foo[x]}=42' and '$foo=42'
             [T_DollarBraced id braced l] | "=" `isPrefixOf` s -> do
                 let variableStr = concat $ oversimplify l
                 let variableReference = getBracedReference variableStr
@@ -4172,22 +4172,22 @@ checkEqualsInCommand params originalToken =
                                 && "]" `isSuffixOf` variableModifier
 
                 case () of
-                    -- $foo=bar should already have caused a parse-time SC1066
+                    -- '$foo=bar' should already have caused a parse-time SC1066
                     -- _ | not braced && isPlain ->
                     --    return ()
 
                     _ | variableStr == "" -> -- Don't try to fix ${}=foo
                         genericMsg (getId cmd)
 
-                    -- $#=42 or ${#var}=42
+                    -- '$#=42' or '${#var}=42'
                     _ | "#" `isPrefixOf` variableStr ->
                         genericMsg (getId cmd)
 
-                    -- ${0}=42
+                    -- '${0}=42'
                     _ | variableStr == "0" ->
                         assign0Msg id $ fixWith [replaceToken id params "BASH_ARGV0"]
 
-                    -- $2=2
+                    -- '$2=2'
                     _ | isPositional ->
                         positionalMsg id
 

test/buildtest

@@ -29,6 +29,8 @@ cabal build ||
   die "build failed"
 cabal test ||
   die "test failed"
+cabal haddock ||
+  die "haddock failed"
 
 sc="$(find . -name shellcheck -type f -perm -111)"
 [ -x "$sc" ] || die "Can't find executable"