Replace custom builtin invocation instructions by a generic version

src/x64/lithium-x64.h

Index: src/x64/lithium-x64.h
diff --git a/src/x64/lithium-x64.h b/src/x64/lithium-x64.h
index 5397c5224d176d283a90cabc76794bd1def81293..8085fb5c42a761c43eada4db8a7184dbcbdb278d 100644
--- a/src/x64/lithium-x64.h
+++ b/src/x64/lithium-x64.h
@@ -92,7 +92,6 @@ class LCodeGen;
   V(Context)                                    \
   V(DebugBreak)                                 \
   V(DeclareGlobals)                             \
-  V(DeleteProperty)                             \
   V(Deoptimize)                                 \
   V(DivI)                                       \
   V(DoubleToI)                                  \
@@ -107,7 +106,6 @@ class LCodeGen;
   V(Goto)                                       \
   V(HasCachedArrayIndexAndBranch)               \
   V(HasInstanceTypeAndBranch)                   \
-  V(In)                                         \
   V(InstanceOf)                                 \
   V(InstanceOfKnownGlobal)                      \
   V(InstanceSize)                               \
@@ -1032,20 +1030,6 @@ class LCmpT: public LTemplateInstruction<1, 2, 0> {
 };
 
 
-class LIn: public LTemplateInstruction<1, 2, 0> {
- public:
-  LIn(LOperand* key, LOperand* object) {
-    inputs_[0] = key;
-    inputs_[1] = object;
-  }
-
-  LOperand* key() { return inputs_[0]; }
-  LOperand* object() { return inputs_[1]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(In, "in")
-};
-
-
 class LInstanceOf: public LTemplateInstruction<1, 2, 0> {
  public:
   LInstanceOf(LOperand* left, LOperand* right) {
@@ -2480,20 +2464,6 @@ class LIsConstructCallAndBranch: public LControlInstruction<0, 1> {
 };
 
 
-class LDeleteProperty: public LTemplateInstruction<1, 2, 0> {
- public:
-  LDeleteProperty(LOperand* obj, LOperand* key) {
-    inputs_[0] = obj;
-    inputs_[1] = key;
-  }
-
-  LOperand* object() { return inputs_[0]; }
-  LOperand* key() { return inputs_[1]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(DeleteProperty, "delete-property")
-};
-
-
 class LOsrEntry: public LTemplateInstruction<0, 0, 0> {
  public:
   LOsrEntry() {}