Implement in-heap backing store for typed arrays.

src/objects-visiting.cc

Index: src/objects-visiting.cc
diff --git a/src/objects-visiting.cc b/src/objects-visiting.cc
index 5ced2cf7a35d9ed3370cd84908cbd41aa79c2fdf..129bac71543f2a19681b3342ab326b0dc08761eb 100644
--- a/src/objects-visiting.cc
+++ b/src/objects-visiting.cc
@@ -82,6 +82,7 @@ StaticVisitorBase::VisitorId StaticVisitorBase::GetVisitorId(
     case FIXED_DOUBLE_ARRAY_TYPE:
       return kVisitFixedDoubleArray;
 
+
     case CONSTANT_POOL_ARRAY_TYPE:
       return kVisitConstantPoolArray;
 
@@ -184,6 +185,17 @@ StaticVisitorBase::VisitorId StaticVisitorBase::GetVisitorId(
                                  kVisitDataObjectGeneric,
                                  instance_size);
 
+    case FIXED_UINT8_ARRAY_TYPE:
+    case FIXED_INT8_ARRAY_TYPE:
+    case FIXED_UINT16_ARRAY_TYPE:
+    case FIXED_INT16_ARRAY_TYPE:
+    case FIXED_UINT32_ARRAY_TYPE:
+    case FIXED_INT32_ARRAY_TYPE:
+    case FIXED_FLOAT32_ARRAY_TYPE:
+    case FIXED_FLOAT64_ARRAY_TYPE:
+    case FIXED_UINT8_CLAMPED_ARRAY_TYPE:
+      return kVisitFixedTypedArray;
+
 #define MAKE_STRUCT_CASE(NAME, Name, name) \
         case NAME##_TYPE:
       STRUCT_LIST(MAKE_STRUCT_CASE)