[turbofan] remove dependence of InstructionBlock on BasicBlock

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

Index: src/compiler/mips/code-generator-mips.cc
diff --git a/src/compiler/mips/code-generator-mips.cc b/src/compiler/mips/code-generator-mips.cc
index 992cd5e67c922f0e4d23e74ccdb0b4d7a295ba86..32d9920a2a327efba88f336992da1876c1fafe6a 100644
--- a/src/compiler/mips/code-generator-mips.cc
+++ b/src/compiler/mips/code-generator-mips.cc
@@ -803,7 +803,7 @@ void CodeGenerator::AssembleArchBranch(Instruction* instr, BranchInfo* branch) {
 }
 
 
-void CodeGenerator::AssembleArchJump(BasicBlock::RpoNumber target) {
+void CodeGenerator::AssembleArchJump(RpoNumber target) {
   if (!IsNextInAssemblyOrder(target)) __ Branch(GetLabel(target));
 }