[wasm] Separate compilation from instantiation

src/v8memory.h

Index: src/v8memory.h
diff --git a/src/v8memory.h b/src/v8memory.h
index b1ae939f845949b3dd02b26517385f39c7ae2b32..d34bce77464ae7b09a971875c9398ad3d3893feb 100644
--- a/src/v8memory.h
+++ b/src/v8memory.h
@@ -64,6 +64,13 @@ class Memory {
   static Handle<Object>& Object_Handle_at(Address addr)  {
     return *reinterpret_cast<Handle<Object>*>(addr);
   }
+
+  static bool IsAddressInRange(Address base, Address address, uint32_t size) {
+    uintptr_t numeric_base = reinterpret_cast<uintptr_t>(base);
+    uintptr_t numeric_address = reinterpret_cast<uintptr_t>(address);
+    return numeric_base <= numeric_address &&
+           numeric_address < numeric_base + size;
+  }
 };
 
 }  // namespace internal