Remove legacy syntax support for library import

runtime/vm/intermediate_language.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_INTERMEDIATE_LANGUAGE_H_
 #define VM_INTERMEDIATE_LANGUAGE_H_
 
 #include "vm/allocation.h"
 #include "vm/ast.h"
 #include "vm/growable_array.h"
@@ skipping 39 matching lines @@
   V(_TypedList, _setUint8, ByteArrayBaseSetUint8, 287047804)                   \
   V(_TypedList, _setInt16, ByteArrayBaseSetInt16, 287047804)                   \
   V(_TypedList, _setUint16, ByteArrayBaseSetUint16, 287047804)                 \
   V(_TypedList, _setInt32, ByteArrayBaseSetInt32, 287047804)                   \
   V(_TypedList, _setUint32, ByteArrayBaseSetUint32, 287047804)                 \
   V(_TypedList, _setFloat32, ByteArrayBaseSetFloat32, 1032541114)              \
   V(_TypedList, _setFloat64, ByteArrayBaseSetFloat64, 1032541114)              \
   V(_GrowableObjectArray, get:length, GrowableArrayLength, 725548050)          \
   V(_GrowableObjectArray, get:_capacity, GrowableArrayCapacity, 725548050)     \
   V(_StringBase, get:length, StringBaseLength, 320803993)                      \
-  V(_StringBase, get:isEmpty, StringBaseIsEmpty, 711547329)                    \
+  V(_StringBase, get:isEmpty, StringBaseIsEmpty, 110632481)                    \
   V(_StringBase, codeUnitAt, StringBaseCodeUnitAt, 984449525)                  \
   V(_StringBase, [], StringBaseCharAt, 1062366987)                             \
   V(_IntegerImplementation, toDouble, IntegerToDouble, 733149324)              \
   V(_Double, toInt, DoubleToInteger, 362666636)                                \
   V(_Double, truncateToDouble, DoubleTruncate, 620870996)                      \
   V(_Double, roundToDouble, DoubleRound, 620870996)                            \
   V(_Double, floorToDouble, DoubleFloor, 620870996)                            \
   V(_Double, ceilToDouble, DoubleCeil, 620870996)                              \
   V(_Double, pow, DoublePow, 1131958048)                                       \
   V(_Double, _modulo, DoubleMod, 437099337)                                    \
@@ skipping 4604 matching lines @@
   ForwardInstructionIterator* current_iterator_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FlowGraphVisitor);
 };
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_