Everywhere: Make ByteBuffer::{create_*,copy}() OOM-safe

Author: https://github.com/alimpfard
Commit: 97e97bccab
Pull-request: https://github.com/SerenityOS/serenity/pull/9832
Reviewed-by: https://github.com/IdanHo

Userland/Libraries/LibJS/Runtime/ArrayBuffer.cpp

@@ -21,7 +21,7 @@ ArrayBuffer* ArrayBuffer::create(GlobalObject& global_object, ByteBuffer* buffer
 
 ArrayBuffer::ArrayBuffer(size_t byte_size, Object& prototype)
     : Object(prototype)
-    , m_buffer(ByteBuffer::create_zeroed(byte_size))
+    , m_buffer(ByteBuffer::create_zeroed(byte_size).release_value()) // FIXME: Handle this possible OOM failure.
     , m_detach_key(js_undefined())
 {
 }

Userland/Libraries/LibJS/Runtime/ArrayBuffer.h

@@ -125,7 +125,7 @@ template<typename T>
 static ByteBuffer numeric_to_raw_bytes(GlobalObject& global_object, Value value, bool is_little_endian)
 {
     using UnderlyingBufferDataType = Conditional<IsSame<ClampedU8, T>, u8, T>;
-    ByteBuffer raw_bytes = ByteBuffer::create_uninitialized(sizeof(UnderlyingBufferDataType));
+    ByteBuffer raw_bytes = ByteBuffer::create_uninitialized(sizeof(UnderlyingBufferDataType)).release_value(); // FIXME: Handle possible OOM situation.
     auto flip_if_needed = [&]() {
         if (is_little_endian)
             return;