Fix incorrent enforcement of tabs to spaces conversion in typescript

src/beautifiers/typescript-formatter.coffee

@@ -16,10 +16,14 @@ module.exports = class TypeScriptFormatter extends Beautifier
         # @verbose('format', format, formatterUtils)
 
         opts = formatterUtils.createDefaultFormatCodeOptions()
-        opts.TabSize = options.tab_width or options.indent_size
-        opts.IndentSize = options.indent_size
-        opts.IndentStyle = 'space'
-        opts.convertTabsToSpaces = true
+
+        if options.indent_with_tabs
+          opts.ConvertTabsToSpaces = false
+        else
+          opts.TabSize = options.tab_width or options.indent_size
+          opts.IndentSize = options.indent_size
+          opts.IndentStyle = 'space'
+          
         @verbose('typescript', text, opts)
         result = format('', text, opts)
         @verbose(result)