fix: restore iota blocks, asm --format flag and prose after the syntax pass

format/integration_test.go

@@ -29,7 +29,7 @@ func TestRoundTripRealGoLibraries(t *testing.T) {
 		if err != nil {
 			t.Fatal(err)
 		}
-		formatted := Source(path, string(src))
+		formatted := Source(string(src))
 		if _, errs := parser.Parse(path, formatted); len(errs) > 0 {
 			t.Errorf("formatted %s no longer parses: %v", path, errs)
 		}