[Atomics] Make Atomics.exchange a builtin using TF

src/compiler/code-assembler.cc

Index: src/compiler/code-assembler.cc
diff --git a/src/compiler/code-assembler.cc b/src/compiler/code-assembler.cc
index 1ace7dae5e262764a6a9519fe8904556ed0e9966..48f56e82398f6a2b8c6bda476f00133b70e4b6c8 100644
--- a/src/compiler/code-assembler.cc
+++ b/src/compiler/code-assembler.cc
@@ -462,6 +462,11 @@ Node* CodeAssembler::AtomicStore(MachineRepresentation rep, Node* base,
   return raw_assembler()->AtomicStore(rep, base, offset, value);
 }
 
+Node* CodeAssembler::AtomicExchange(MachineType type, Node* base, Node* offset,
+                                    Node* value) {
+  return raw_assembler()->AtomicExchange(type, base, offset, value);
+}
+
 Node* CodeAssembler::StoreRoot(Heap::RootListIndex root_index, Node* value) {
   DCHECK(Heap::RootCanBeWrittenAfterInitialization(root_index));
   Node* roots_array_start =