[Atomics] Make Atomics.compareExchange a builtin using TF

src/compiler/instruction-scheduler.cc

Index: src/compiler/instruction-scheduler.cc
diff --git a/src/compiler/instruction-scheduler.cc b/src/compiler/instruction-scheduler.cc
index d082cae57ad9bd3cf53cf979cbe8ba8c6a02c116..db7712a1ef51c5a5af12ea7f597a782285fe7bbc 100644
--- a/src/compiler/instruction-scheduler.cc
+++ b/src/compiler/instruction-scheduler.cc
@@ -331,6 +331,11 @@ int InstructionScheduler::GetInstructionFlags(const Instruction* instr) const {
     case kAtomicExchangeInt16:
     case kAtomicExchangeUint16:
     case kAtomicExchangeWord32:
+    case kAtomicCompareExchangeInt8:
+    case kAtomicCompareExchangeUint8:
+    case kAtomicCompareExchangeInt16:
+    case kAtomicCompareExchangeUint16:
+    case kAtomicCompareExchangeWord32:
       return kHasSideEffect;
 
 #define CASE(Name) case k##Name: