[turbofan] remove dependence of InstructionBlock on BasicBlock

src/compiler/arm64/code-generator-arm64.cc

 // Copyright 2014 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/compiler/code-generator.h"
 
 #include "src/arm64/macro-assembler-arm64.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
@@ skipping 823 matching lines @@
         UNREACHABLE();
     }
   } else {
     Condition cc = FlagsConditionToCondition(condition);
     __ B(cc, tlabel);
   }
   if (!branch->fallthru) __ B(flabel);  // no fallthru to flabel.
 }
 
 
-void CodeGenerator::AssembleArchJump(BasicBlock::RpoNumber target) {
+void CodeGenerator::AssembleArchJump(RpoNumber target) {
   if (!IsNextInAssemblyOrder(target)) __ B(GetLabel(target));
 }
 
 
 // Assemble boolean materializations after this instruction.
 void CodeGenerator::AssembleArchBoolean(Instruction* instr,
                                         FlagsCondition condition) {
   Arm64OperandConverter i(this, instr);
 
   // Materialize a full 64-bit 1 or 0 value. The result register is always the
@@ skipping 300 matching lines @@
     }
   }
   MarkLazyDeoptSite();
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8