Reland 21774: Generate KeyedLoadGeneric with Hydrogen

src/arm/lithium-arm.h

Index: src/arm/lithium-arm.h
diff --git a/src/arm/lithium-arm.h b/src/arm/lithium-arm.h
index 19e26ba383d01ed3aa1c922d76a528c5cb8f318a..1b61092b2eb3fdfe3aa7ac298a7752199927f279 100644
--- a/src/arm/lithium-arm.h
+++ b/src/arm/lithium-arm.h
@@ -443,6 +443,7 @@ class LDummyUse V8_FINAL : public LTemplateInstruction<1, 1, 0> {
 
 class LDeoptimize V8_FINAL : public LTemplateInstruction<0, 0, 0> {
  public:
+  virtual bool IsControl() const V8_OVERRIDE { return true; }
   DECLARE_CONCRETE_INSTRUCTION(Deoptimize, "deoptimize")
   DECLARE_HYDROGEN_ACCESSOR(Deoptimize)
 };
@@ -1638,7 +1639,7 @@ class LLoadKeyed V8_FINAL : public LTemplateInstruction<1, 2, 0> {
   DECLARE_HYDROGEN_ACCESSOR(LoadKeyed)
 
   virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
-  uint32_t additional_index() const { return hydrogen()->index_offset(); }
+  uint32_t base_offset() const { return hydrogen()->base_offset(); }
 };
 
 
@@ -2310,7 +2311,7 @@ class LStoreKeyed V8_FINAL : public LTemplateInstruction<0, 3, 0> {
     }
     return hydrogen()->NeedsCanonicalization();
   }
-  uint32_t additional_index() const { return hydrogen()->index_offset(); }
+  uint32_t base_offset() const { return hydrogen()->base_offset(); }
 };