Merge V8 5.2.361.47  DO NOT MERGE

https://chromium.googlesource.com/v8/v8/+/5.2.361.47

FPIIM-449

Change-Id: Ibec421b85a9b88cb3a432ada642e469fe7e78346
(cherry picked from commit bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8)
diff --git a/src/ic/arm/ic-arm.cc b/src/ic/arm/ic-arm.cc
index 14ed8b4..b0bcc88 100644
--- a/src/ic/arm/ic-arm.cc
+++ b/src/ic/arm/ic-arm.cc
@@ -415,8 +415,8 @@
   __ LoadRoot(vector, Heap::kDummyVectorRootIndex);
   __ mov(slot, Operand(Smi::FromInt(slot_index)));
 
-  Code::Flags flags = Code::RemoveTypeAndHolderFromFlags(
-      Code::ComputeHandlerFlags(Code::LOAD_IC));
+  Code::Flags flags =
+      Code::RemoveHolderFromFlags(Code::ComputeHandlerFlags(Code::LOAD_IC));
   masm->isolate()->stub_cache()->GenerateProbe(masm, Code::KEYED_LOAD_IC, flags,
                                                receiver, key, r4, r5, r6, r9);
   // Cache miss.
@@ -626,10 +626,10 @@
   __ JumpIfSmi(receiver, &slow);
   // Get the map of the object.
   __ ldr(receiver_map, FieldMemOperand(receiver, HeapObject::kMapOffset));
-  // Check that the receiver does not require access checks and is not observed.
-  // The generic stub does not perform map checks or handle observed objects.
+  // Check that the receiver does not require access checks.
+  // The generic stub does not perform map checks.
   __ ldrb(ip, FieldMemOperand(receiver_map, Map::kBitFieldOffset));
-  __ tst(ip, Operand(1 << Map::kIsAccessCheckNeeded | 1 << Map::kIsObserved));
+  __ tst(ip, Operand(1 << Map::kIsAccessCheckNeeded));
   __ b(ne, &slow);
   // Check if the object is a JS array or not.
   __ ldrb(r4, FieldMemOperand(receiver_map, Map::kInstanceTypeOffset));
@@ -682,10 +682,10 @@
   __ LoadRoot(vector, Heap::kDummyVectorRootIndex);
   __ mov(slot, Operand(Smi::FromInt(slot_index)));
 
-  Code::Flags flags = Code::RemoveTypeAndHolderFromFlags(
-      Code::ComputeHandlerFlags(Code::STORE_IC));
+  Code::Flags flags =
+      Code::RemoveHolderFromFlags(Code::ComputeHandlerFlags(Code::STORE_IC));
   masm->isolate()->stub_cache()->GenerateProbe(
-      masm, Code::STORE_IC, flags, receiver, key, r5, temporary2, r6, r9);
+      masm, Code::KEYED_STORE_IC, flags, receiver, key, r5, temporary2, r6, r9);
   // Cache miss.
   __ b(&miss);
 
@@ -743,11 +743,11 @@
   DCHECK(StoreDescriptor::ValueRegister().is(r0));
 
   // Get the receiver from the stack and probe the stub cache.
-  Code::Flags flags = Code::RemoveTypeAndHolderFromFlags(
-      Code::ComputeHandlerFlags(Code::STORE_IC));
+  Code::Flags flags =
+      Code::RemoveHolderFromFlags(Code::ComputeHandlerFlags(Code::STORE_IC));
 
   masm->isolate()->stub_cache()->GenerateProbe(masm, Code::STORE_IC, flags,
-                                               receiver, name, r3, r4, r5, r6);
+                                               receiver, name, r5, r6, r7, r8);
 
   // Cache miss: Jump to runtime.
   GenerateMiss(masm);