mistranformation with comments on hanging then statements

[matthargett]

Here's a diff after running latest master, which makes the codebase in question no longer parse:

@@ -317,16 +290,12 @@ local function readToken(lexer, prev)
                then
                        pos += 1
                        continue
-               elseif
-                       code == 10 -- \n
-               then
+               elseif code == 10 -- \n then
                        pos += 1
                        lexer.line += 1
                        lexer.lineStart = pos - 1
                        continue
-               elseif
-                       code == 13 -- \r
-               then
+               elseif code == 13 -- \r then
                        if charCodeAt(body, pos + 1) == 10 then
                                pos += 2
                        else

[matthargett]

Another example that may be the same root cause:

@@ -129,9 +129,7 @@ function Map.__newindex(table_, key, value)
 end

 local function coerceToMap(mapLike: Map<any, any> | Table<any, any>): Map<any, any>
-       return instanceOf(mapLike, Map)
-               and mapLike -- ROBLOX: order is preservered
-               or Map.new(Object.entries(mapLike)) -- ROBLOX: order is not preserved
+       return instanceOf(mapLike, Map) and mapLike -- ROBLOX: order is preservered or Map.new(Object.entries(mapLike)) -- ROBLOX: order is not preserved
 end

This is much worse, because the code parses and passes selene correctly, but then unit tests fail. More subtle, and therefore more dangeous to use StyLua in a codebase with <92% code coverage.

[JohnnyMorganz]

Similar issue:

if -- comment
	foo
then
end

if 
	foo
	-- comment
then
end

turns to

if  -- commentfoo then
end

if foo-- comment
 then
end

and likewise for while condition do statements of a similar format