Return Object* instead of MaybeObject* from runtime calls.

src/ic.cc

Index: src/ic.cc
diff --git a/src/ic.cc b/src/ic.cc
index b075c1492b1cf696811855e5513b8fe82bf1e102..f510941bbf9e86380ce280e01f4a9fd6721413a5 100644
--- a/src/ic.cc
+++ b/src/ic.cc
@@ -1831,7 +1831,7 @@ MaybeHandle<Object> KeyedStoreIC::Store(Handle<Object> object,
 
 // Used from ic-<arch>.cc.
 // Used from ic-<arch>.cc.
-RUNTIME_FUNCTION(MaybeObject*, LoadIC_Miss) {
+RUNTIME_FUNCTION(Object*, LoadIC_Miss) {
   HandleScope scope(isolate);
   ASSERT(args.length() == 2);
   LoadIC ic(IC::NO_EXTRA_FRAME, isolate);
@@ -1845,7 +1845,7 @@ RUNTIME_FUNCTION(MaybeObject*, LoadIC_Miss) {
 
 
 // Used from ic-<arch>.cc
-RUNTIME_FUNCTION(MaybeObject*, KeyedLoadIC_Miss) {
+RUNTIME_FUNCTION(Object*, KeyedLoadIC_Miss) {
   HandleScope scope(isolate);
   ASSERT(args.length() == 2);
   KeyedLoadIC ic(IC::NO_EXTRA_FRAME, isolate);
@@ -1858,7 +1858,7 @@ RUNTIME_FUNCTION(MaybeObject*, KeyedLoadIC_Miss) {
 }
 
 
-RUNTIME_FUNCTION(MaybeObject*, KeyedLoadIC_MissFromStubFailure) {
+RUNTIME_FUNCTION(Object*, KeyedLoadIC_MissFromStubFailure) {
   HandleScope scope(isolate);
   ASSERT(args.length() == 2);
   KeyedLoadIC ic(IC::EXTRA_CALL_FRAME, isolate);
@@ -1872,7 +1872,7 @@ RUNTIME_FUNCTION(MaybeObject*, KeyedLoadIC_MissFromStubFailure) {
 
 
 // Used from ic-<arch>.cc.
-RUNTIME_FUNCTION(MaybeObject*, StoreIC_Miss) {
+RUNTIME_FUNCTION(Object*, StoreIC_Miss) {
   HandleScope scope(isolate);
   ASSERT(args.length() == 3);
   StoreIC ic(IC::NO_EXTRA_FRAME, isolate);
@@ -1888,7 +1888,7 @@ RUNTIME_FUNCTION(MaybeObject*, StoreIC_Miss) {
 }
 
 
-RUNTIME_FUNCTION(MaybeObject*, StoreIC_MissFromStubFailure) {
+RUNTIME_FUNCTION(Object*, StoreIC_MissFromStubFailure) {
   HandleScope scope(isolate);
   ASSERT(args.length() == 3);
   StoreIC ic(IC::EXTRA_CALL_FRAME, isolate);
@@ -1904,7 +1904,7 @@ RUNTIME_FUNCTION(MaybeObject*, StoreIC_MissFromStubFailure) {
 }
 
 
-RUNTIME_FUNCTION(MaybeObject*, StoreIC_ArrayLength) {
+RUNTIME_FUNCTION(Object*, StoreIC_ArrayLength) {
   HandleScope scope(isolate);
 
   ASSERT(args.length() == 2);
@@ -1930,7 +1930,7 @@ RUNTIME_FUNCTION(MaybeObject*, StoreIC_ArrayLength) {
 // Extend storage is called in a store inline cache when
 // it is necessary to extend the properties array of a
 // JSObject.
-RUNTIME_FUNCTION(MaybeObject*, SharedStoreIC_ExtendStorage) {
+RUNTIME_FUNCTION(Object*, SharedStoreIC_ExtendStorage) {
   HandleScope shs(isolate);
   ASSERT(args.length() == 3);
 
@@ -1971,7 +1971,7 @@ RUNTIME_FUNCTION(MaybeObject*, SharedStoreIC_ExtendStorage) {
 
 
 // Used from ic-<arch>.cc.
-RUNTIME_FUNCTION(MaybeObject*, KeyedStoreIC_Miss) {
+RUNTIME_FUNCTION(Object*, KeyedStoreIC_Miss) {
   HandleScope scope(isolate);
   ASSERT(args.length() == 3);
   KeyedStoreIC ic(IC::NO_EXTRA_FRAME, isolate);
@@ -1987,7 +1987,7 @@ RUNTIME_FUNCTION(MaybeObject*, KeyedStoreIC_Miss) {
 }
 
 
-RUNTIME_FUNCTION(MaybeObject*, KeyedStoreIC_MissFromStubFailure) {
+RUNTIME_FUNCTION(Object*, KeyedStoreIC_MissFromStubFailure) {
   HandleScope scope(isolate);
   ASSERT(args.length() == 3);
   KeyedStoreIC ic(IC::EXTRA_CALL_FRAME, isolate);
@@ -2003,7 +2003,7 @@ RUNTIME_FUNCTION(MaybeObject*, KeyedStoreIC_MissFromStubFailure) {
 }
 
 
-RUNTIME_FUNCTION(MaybeObject*, StoreIC_Slow) {
+RUNTIME_FUNCTION(Object*, StoreIC_Slow) {
   HandleScope scope(isolate);
   ASSERT(args.length() == 3);
   StoreIC ic(IC::NO_EXTRA_FRAME, isolate);
@@ -2020,7 +2020,7 @@ RUNTIME_FUNCTION(MaybeObject*, StoreIC_Slow) {
 }
 
 
-RUNTIME_FUNCTION(MaybeObject*, KeyedStoreIC_Slow) {
+RUNTIME_FUNCTION(Object*, KeyedStoreIC_Slow) {
   HandleScope scope(isolate);
   ASSERT(args.length() == 3);
   KeyedStoreIC ic(IC::NO_EXTRA_FRAME, isolate);
@@ -2037,7 +2037,7 @@ RUNTIME_FUNCTION(MaybeObject*, KeyedStoreIC_Slow) {
 }
 
 
-RUNTIME_FUNCTION(MaybeObject*, ElementsTransitionAndStoreIC_Miss) {
+RUNTIME_FUNCTION(Object*, ElementsTransitionAndStoreIC_Miss) {
   HandleScope scope(isolate);
   ASSERT(args.length() == 4);
   KeyedStoreIC ic(IC::EXTRA_CALL_FRAME, isolate);
@@ -2556,7 +2556,7 @@ MaybeHandle<Object> BinaryOpIC::Transition(
 }
 
 
-RUNTIME_FUNCTION(MaybeObject*, BinaryOpIC_Miss) {
+RUNTIME_FUNCTION(Object*, BinaryOpIC_Miss) {
   HandleScope scope(isolate);
   ASSERT_EQ(2, args.length());
   Handle<Object> left = args.at<Object>(BinaryOpICStub::kLeft);
@@ -2571,7 +2571,7 @@ RUNTIME_FUNCTION(MaybeObject*, BinaryOpIC_Miss) {
 }
 
 
-RUNTIME_FUNCTION(MaybeObject*, BinaryOpIC_MissWithAllocationSite) {
+RUNTIME_FUNCTION(Object*, BinaryOpIC_MissWithAllocationSite) {
   HandleScope scope(isolate);
   ASSERT_EQ(3, args.length());
   Handle<AllocationSite> allocation_site = args.at<AllocationSite>(
@@ -2866,7 +2866,7 @@ Handle<Object> CompareNilIC::CompareNil(Handle<Object> object) {
 }
 
 
-RUNTIME_FUNCTION(MaybeObject*, CompareNilIC_Miss) {
+RUNTIME_FUNCTION(Object*, CompareNilIC_Miss) {
   HandleScope scope(isolate);
   Handle<Object> object = args.at<Object>(0);
   CompareNilIC ic(isolate);
@@ -2874,7 +2874,7 @@ RUNTIME_FUNCTION(MaybeObject*, CompareNilIC_Miss) {
 }
 
 
-RUNTIME_FUNCTION(MaybeObject*, Unreachable) {
+RUNTIME_FUNCTION(Object*, Unreachable) {
   UNREACHABLE();
   CHECK(false);
   return isolate->heap()->undefined_value();
@@ -2931,7 +2931,7 @@ Handle<Object> ToBooleanIC::ToBoolean(Handle<Object> object) {
 }
 
 
-RUNTIME_FUNCTION(MaybeObject*, ToBooleanIC_Miss) {
+RUNTIME_FUNCTION(Object*, ToBooleanIC_Miss) {
   ASSERT(args.length() == 1);
   HandleScope scope(isolate);
   Handle<Object> object = args.at<Object>(0);