[turbofan] pass zone to InstructionSequence

src/compiler/instruction.cc

Index: src/compiler/instruction.cc
diff --git a/src/compiler/instruction.cc b/src/compiler/instruction.cc
index 4efa6e8e50b3d79740b8f5acd421e29f418c40e4..0f041af989cf465e8e5afdae6bb993da2a1b7a09 100644
--- a/src/compiler/instruction.cc
+++ b/src/compiler/instruction.cc
@@ -380,9 +380,10 @@ static void InitializeInstructionBlocks(Zone* zone, const Schedule* schedule,
 }
 
 
-InstructionSequence::InstructionSequence(Linkage* linkage, const Graph* graph,
+InstructionSequence::InstructionSequence(Zone* instruction_zone,
+                                         Linkage* linkage, const Graph* graph,
                                          const Schedule* schedule)
-    : zone_(schedule->zone()),
+    : zone_(instruction_zone),
       node_count_(graph->NodeCount()),
       node_map_(zone()->NewArray<int>(node_count_)),
       instruction_blocks_(static_cast<int>(schedule->rpo_order()->size()), NULL,