Rely less on pandoc's type implicit conversions

Author: tarleb

src/resources/filters/ast/customnodes.lua

@@ -387,8 +387,10 @@ _quarto.ast = {
           _quarto.ast.grow_scaffold(node, index)
         end
         local pt = pandoc.utils.type(value)
-        if pt == "Block" or pt == "Inline" then
-          node.content[index].content = {value}
+        if pt == "Block" then
+          node.content[index].content = pandoc.Blocks{value}
+        elseif pt == "Inline" then
+          node.content[index].content = pandoc.Inlines{value}
         else
           node.content[index].content = value
         end

src/resources/filters/quarto-pre/code-annotation.lua

@@ -310,7 +310,7 @@ function code_annotations()
       -- if code annotations is false, then shut it down
       if codeAnnotations ~= false then
 
-        local outputs = pandoc.List()
+        local outputs = pandoc.Blocks{}
 
         -- annotations[annotation-number] = {list of line numbers}
         local pendingAnnotations = nil