Remove HFixedArrayBaseLength instruction and replace with regular HLoadNamedField.

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 f34b623e3863f0e67907b777cb71e90d909ba32b..39cab8fdb3c8950c6c2d6c4cf731b2d1a125cfb1 100644
--- a/src/arm/lithium-arm.h
+++ b/src/arm/lithium-arm.h
@@ -99,7 +99,6 @@ class LCodeGen;
   V(DoubleToSmi)                                \
   V(DummyUse)                                   \
   V(ElementsKind)                               \
-  V(FixedArrayBaseLength)                       \
   V(FunctionLiteral)                            \
   V(GetCachedArrayIndex)                        \
   V(GlobalObject)                               \
@@ -1281,20 +1280,6 @@ class LCmpMapAndBranch: public LControlInstruction<1, 1> {
 };
 
 
-class LFixedArrayBaseLength: public LTemplateInstruction<1, 1, 0> {
- public:
-  explicit LFixedArrayBaseLength(LOperand* value) {
-    inputs_[0] = value;
-  }
-
-  LOperand* value() { return inputs_[0]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(FixedArrayBaseLength,
-                               "fixed-array-base-length")
-  DECLARE_HYDROGEN_ACCESSOR(FixedArrayBaseLength)
-};
-
-
 class LMapEnumLength: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LMapEnumLength(LOperand* value) {