Revert "[turbofan] Weakening of types must weaken ranges inside unions."

src/types.cc

Index: src/types.cc
diff --git a/src/types.cc b/src/types.cc
index b423beea0833e4be55865ff0e7d9fa463226afc4..d595b049d214a158cdb74056b884e1b26bd1e87e 100644
--- a/src/types.cc
+++ b/src/types.cc
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include <iomanip>
-
 #include "src/types.h"
 
 #include "src/ostreams.h"
@@ -1019,12 +1017,8 @@ void TypeImpl<Config>::PrintTo(std::ostream& os, PrintDimension dim) {
     } else if (this->IsConstant()) {
       os << "Constant(" << Brief(*this->AsConstant()->Value()) << ")";
     } else if (this->IsRange()) {
-      std::ostream::fmtflags saved_flags = os.setf(std::ios::fixed);
-      std::streamsize saved_precision = os.precision(0);
       os << "Range(" << this->AsRange()->Min()->Number() << ", "
          << this->AsRange()->Max()->Number() << ")";
-      os.flags(saved_flags);
-      os.precision(saved_precision);
     } else if (this->IsContext()) {
       os << "Context(";
       this->AsContext()->Outer()->PrintTo(os, dim);