typo fix

Author: soronpo

compiler/src/dotty/tools/dotc/typer/Typer.scala

@@ -669,7 +669,7 @@ class Typer(@constructorOnly nestingLevel: Int = 0) extends Namer
             case Select(tree, _) => unapply(tree)
             case _ => None
       selected match
-        // `fun` may not be typed do to errors like ambiguity in typing, so we check for that.
+        // `fun` may not be typed due to errors like ambiguity in typing, so we check for that.
         // If we are already in precise mode, then the qualifier is already typed precisely,
         // so there is no need for any additional logic.
         case Extract(Apply(TypeApply(fun, _), _)) if fun.hasType && !ctx.mode.is(Mode.Precise) =>