Make FlushICache part of Assembler(Base) and take Isolate as parameter.

src/arm64/assembler-arm64.h

 // Copyright 2013 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.
 
 #ifndef V8_ARM64_ASSEMBLER_ARM64_H_
 #define V8_ARM64_ASSEMBLER_ARM64_H_
 
 #include <deque>
 #include <list>
 #include <map>
@@ skipping 792 matching lines @@
   // values, pc offset of entries which cannot be shared.
   std::vector<std::pair<uint64_t, int> > unique_entries_;
 };
 
 
 // -----------------------------------------------------------------------------
 // Assembler.
 
 class Assembler : public AssemblerBase {
  public:
+  using AssemblerBase::FlushICache;
+  using AssemblerBase::FlushICacheWithoutIsolate;
+
   // Create an assembler. Instructions and relocation information are emitted
   // into a buffer, with the instructions starting from the beginning and the
   // relocation information starting from the end of the buffer. See CodeDesc
   // for a detailed comment on the layout (globals.h).
   //
   // If the provided buffer is NULL, the assembler allocates and grows its own
   // buffer, and buffer_size determines the initial buffer size. The buffer is
   // owned by the assembler and deallocated upon destruction of the assembler.
   //
   // If the provided buffer is not NULL, the assembler uses the provided buffer
@@ skipping 1449 matching lines @@
   ~PatchingAssembler() {
     // Const pool should still be blocked.
     DCHECK(is_const_pool_blocked());
     EndBlockPools();
     // Verify we have generated the number of instruction we expected.
     DCHECK((pc_offset() + kGap) == buffer_size_);
     // Verify no relocation information has been emitted.
     DCHECK(IsConstPoolEmpty());
     // Flush the Instruction cache.
     size_t length = buffer_size_ - kGap;
-    CpuFeatures::FlushICache(buffer_, length);
+    Assembler::FlushICacheWithoutIsolate(buffer_, length);
   }
 
   // See definition of PatchAdrFar() for details.
   static const int kAdrFarPatchableNNops = 2;
   static const int kAdrFarPatchableNInstrs = kAdrFarPatchableNNops + 2;
   void PatchAdrFar(int64_t target_offset);
 };
 
 
 class EnsureSpace BASE_EMBEDDED {
  public:
   explicit EnsureSpace(Assembler* assembler) {
     assembler->CheckBufferSpace();
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM64_ASSEMBLER_ARM64_H_