[turbofan] Add support for eager/soft deoptimization reasons.

test/unittests/compiler/instruction-selector-unittest.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 "test/unittests/compiler/instruction-selector-unittest.h"
 
 #include "src/code-factory.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/schedule.h"
 #include "src/flags.h"
@@ skipping 84 matching lines @@
     int const virtual_register = i.second;
     if (sequence.IsFP(virtual_register)) {
       EXPECT_FALSE(sequence.IsReference(virtual_register));
       s.doubles_.insert(virtual_register);
     }
     if (sequence.IsReference(virtual_register)) {
       EXPECT_FALSE(sequence.IsFP(virtual_register));
       s.references_.insert(virtual_register);
     }
   }
-  for (int i = 0; i < sequence.GetFrameStateDescriptorCount(); i++) {
-    s.deoptimization_entries_.push_back(sequence.GetFrameStateDescriptor(
-        InstructionSequence::StateId::FromInt(i)));
+  for (int i = 0; i < sequence.GetDeoptimizationEntryCount(); i++) {
+    s.deoptimization_entries_.push_back(
+        sequence.GetDeoptimizationEntry(i).descriptor());
   }
   return s;
 }
 
 
 int InstructionSelectorTest::Stream::ToVreg(const Node* node) const {
   VirtualRegisters::const_iterator i = virtual_registers_.find(node->id());
   CHECK(i != virtual_registers_.end());
   return i->second;
 }
@@ skipping 503 matching lines @@
   EXPECT_EQ(s.ToVreg(context2), s.ToVreg(call_instr->InputAt(14)));
   // Continuation.
 
   EXPECT_EQ(kArchRet, s[index++]->arch_opcode());
   EXPECT_EQ(index, s.size());
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8