[crankshaft] Remove HLoadGlobalGeneric and use HCallWithDescriptor instead to call LoadGlobalIC.

src/crankshaft/arm64/lithium-arm64.h

Index: src/crankshaft/arm64/lithium-arm64.h
diff --git a/src/crankshaft/arm64/lithium-arm64.h b/src/crankshaft/arm64/lithium-arm64.h
index 9891f9ee49e52aec5636df018b15e7ce6524ec08..22f448e8fa4a1a73baf4fe222e899be7bcad5ab1 100644
--- a/src/crankshaft/arm64/lithium-arm64.h
+++ b/src/crankshaft/arm64/lithium-arm64.h
@@ -91,7 +91,6 @@ class LCodeGen;
   V(LoadContextSlot)                         \
   V(LoadFieldByIndex)                        \
   V(LoadFunctionPrototype)                   \
-  V(LoadGlobalGeneric)                       \
   V(LoadKeyedExternal)                       \
   V(LoadKeyedFixed)                          \
   V(LoadKeyedFixedDouble)                    \
@@ -1537,24 +1536,6 @@ class LLoadFunctionPrototype final : public LTemplateInstruction<1, 1, 1> {
   DECLARE_HYDROGEN_ACCESSOR(LoadFunctionPrototype)
 };
 
-class LLoadGlobalGeneric final : public LTemplateInstruction<1, 1, 1> {
- public:
-  LLoadGlobalGeneric(LOperand* context, LOperand* vector) {
-    inputs_[0] = context;
-    temps_[0] = vector;
-  }
-
-  LOperand* context() { return inputs_[0]; }
-  LOperand* temp_vector() { return temps_[0]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(LoadGlobalGeneric, "load-global-generic")
-  DECLARE_HYDROGEN_ACCESSOR(LoadGlobalGeneric)
-
-  Handle<Object> name() const { return hydrogen()->name(); }
-  TypeofMode typeof_mode() const { return hydrogen()->typeof_mode(); }
-};
-
-
 template <int T>
 class LLoadKeyed : public LTemplateInstruction<1, 3, T> {
  public: