[wasm] remove faux code objects

src/arm64/assembler-arm64.cc

Index: src/arm64/assembler-arm64.cc
diff --git a/src/arm64/assembler-arm64.cc b/src/arm64/assembler-arm64.cc
index 6fddd6f29396841540e4cc17f909ae058d02671c..d1874af347412e8d4e4c346551e8f0e41e1efd98 100644
--- a/src/arm64/assembler-arm64.cc
+++ b/src/arm64/assembler-arm64.cc
@@ -189,6 +189,11 @@ uint32_t RelocInfo::wasm_memory_size_reference() {
   return Memory::uint32_at(Assembler::target_pointer_address_at(pc_));
 }
 
+uint32_t RelocInfo::wasm_function_index() {
+  DCHECK(IsWasmCall(rmode_));
+  return Memory::uint32_at(Assembler::target_pointer_address_at(pc_));
+}
+
 void RelocInfo::update_wasm_memory_reference(
     Address old_base, Address new_base, uint32_t old_size, uint32_t new_size,
     ICacheFlushMode icache_flush_mode) {