Rename InstructionsReader to ImageReader for symmetry with ImageWriter.

runtime/vm/raw_object.h

 // Copyright (c) 2012, 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 RUNTIME_VM_RAW_OBJECT_H_
 #define RUNTIME_VM_RAW_OBJECT_H_
 
 #include "platform/assert.h"
 #include "vm/atomic.h"
 #include "vm/exceptions.h"
@@ skipping 603 matching lines @@
   friend class RawExternalTypedData;
   friend class RawInstructions;
   friend class RawInstance;
   friend class RawTypedData;
   friend class Scavenger;
   friend class ScavengerVisitor;
   friend class SizeExcludingClassVisitor;  // GetClassId
   friend class InstanceAccumulator;        // GetClassId
   friend class RetainingPathVisitor;       // GetClassId
   friend class SkippedCodeFunctions;       // StorePointer
-  friend class InstructionsReader;         // tags_ check
+  friend class ImageReader;                // tags_ check
   friend class ImageWriter;
   friend class AssemblyImageWriter;
   friend class BlobImageWriter;
   friend class SnapshotReader;
   friend class Deserializer;
   friend class SnapshotWriter;
   friend class String;
   friend class Type;  // GetClassId
   friend class TypedData;
   friend class TypedDataView;
@@ skipping 585 matching lines @@
   static bool ContainsPC(RawInstructions* raw_instr, uword pc);
 
   friend class RawCode;
   friend class RawFunction;
   friend class Code;
   friend class StackFrame;
   template <bool>
   friend class MarkingVisitorBase;
   friend class SkippedCodeFunctions;
   friend class Function;
-  friend class InstructionsReader;
+  friend class ImageReader;
   friend class ImageWriter;
 };
 
 
 class RawPcDescriptors : public RawObject {
  public:
   enum Kind {
     kDeopt = 1,                            // Deoptimization continuation point.
     kIcCall = kDeopt << 1,                 // IC call.
     kUnoptStaticCall = kIcCall << 1,       // Call to a known target via stub.
@@ skipping 1206 matching lines @@
   COMPILE_ASSERT(kExternalTypedDataInt8ArrayCid ==
                  kTypedDataInt8ArrayViewCid + 15);
   COMPILE_ASSERT(kByteBufferCid == kExternalTypedDataInt8ArrayCid + 14);
   COMPILE_ASSERT(kNullCid == kByteBufferCid + 1);
   return (kNullCid - kTypedDataInt8ArrayCid);
 }
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_RAW_OBJECT_H_