[crankshaft] Remove HLoadNamedGeneric and use HCallWithDescriptor to call LoadIC.

src/crankshaft/x64/lithium-x64.h

Index: src/crankshaft/x64/lithium-x64.h
diff --git a/src/crankshaft/x64/lithium-x64.h b/src/crankshaft/x64/lithium-x64.h
index 502f1992a865189b4b26adf022e2f65c48998fbf..3fc4ae26a4e0b3f319b4b02b59f3c3f3031a0d90 100644
--- a/src/crankshaft/x64/lithium-x64.h
+++ b/src/crankshaft/x64/lithium-x64.h
@@ -92,7 +92,6 @@ class LCodeGen;
   V(LoadKeyed)                               \
   V(LoadKeyedGeneric)                        \
   V(LoadNamedField)                          \
-  V(LoadNamedGeneric)                        \
   V(MathAbs)                                 \
   V(MathClz32)                               \
   V(MathCos)                                 \
@@ -1489,26 +1488,6 @@ class LLoadNamedField final : public LTemplateInstruction<1, 1, 0> {
 };
 
 
-class LLoadNamedGeneric final : public LTemplateInstruction<1, 2, 1> {
- public:
-  explicit LLoadNamedGeneric(LOperand* context, LOperand* object,
-                             LOperand* vector) {
-    inputs_[0] = context;
-    inputs_[1] = object;
-    temps_[0] = vector;
-  }
-
-  DECLARE_CONCRETE_INSTRUCTION(LoadNamedGeneric, "load-named-generic")
-  DECLARE_HYDROGEN_ACCESSOR(LoadNamedGeneric)
-
-  LOperand* context() { return inputs_[0]; }
-  LOperand* object() { return inputs_[1]; }
-  LOperand* temp_vector() { return temps_[0]; }
-
-  Handle<Object> name() const { return hydrogen()->name(); }
-};
-
-
 class LLoadFunctionPrototype final : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LLoadFunctionPrototype(LOperand* function) {