[turbofan] initial framework for unittesting of register allocator

test/cctest/compiler/test-instruction.cc

Index: test/cctest/compiler/test-instruction.cc
diff --git a/test/cctest/compiler/test-instruction.cc b/test/cctest/compiler/test-instruction.cc
index 2b41e40c6b049f598db900f61541ee27b701d12d..2069c7f4fef02e5496f72e8793a63f8956c5d9d1 100644
--- a/test/cctest/compiler/test-instruction.cc
+++ b/test/cctest/compiler/test-instruction.cc
@@ -55,7 +55,9 @@ class InstructionTester : public HandleAndZoneScope {
       Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
       DCHECK(schedule.rpo_order()->size() > 0);
     }
-    code = new TestInstrSeq(main_zone(), &schedule);
+    InstructionBlocks* instruction_blocks =
+        InstructionSequence::InstructionBlocksFor(main_zone(), &schedule);
+    code = new TestInstrSeq(main_zone(), instruction_blocks);
   }
 
   Node* Int32Constant(int32_t val) {