[intrinsics] Drop the now obsolete %_DoubleHi and %_DoubleLo intrinsics.

src/crankshaft/hydrogen-instructions.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/crankshaft/hydrogen-instructions.h"
 
 #include "src/base/bits.h"
 #include "src/base/ieee754.h"
 #include "src/base/safe_math.h"
 #include "src/crankshaft/hydrogen-infer-representation.h"
@@ skipping 770 matching lines @@
     case HValue::kClassOfTestAndBranch:
     case HValue::kCompareGeneric:
     case HValue::kCompareHoleAndBranch:
     case HValue::kCompareMap:
     case HValue::kCompareNumericAndBranch:
     case HValue::kCompareObjectEqAndBranch:
     case HValue::kConstant:
     case HValue::kContext:
     case HValue::kDebugBreak:
     case HValue::kDeclareGlobals:
-    case HValue::kDoubleBits:
     case HValue::kDummyUse:
     case HValue::kEnterInlined:
     case HValue::kEnvironmentMarker:
     case HValue::kForceRepresentation:
     case HValue::kGetCachedArrayIndex:
     case HValue::kGoto:
     case HValue::kHasCachedArrayIndexAndBranch:
     case HValue::kHasInstanceTypeAndBranch:
     case HValue::kInnerAllocatedObject:
     case HValue::kIsSmiAndBranch:
@@ skipping 3239 matching lines @@
     case HObjectAccess::kExternalMemory:
       os << "[external-memory]";
       break;
   }
 
   return os << "@" << access.offset();
 }
 
 }  // namespace internal
 }  // namespace v8