Do not emit duplicate deoptimization entries for GotoInstr.

runtime/vm/intermediate_language.cc

Index: runtime/vm/intermediate_language.cc
diff --git a/runtime/vm/intermediate_language.cc b/runtime/vm/intermediate_language.cc
index ce76be540bb1d65390db1455c112016182b80d00..e5d855bd226de29cac49c1b2e38558381fe6cda3 100644
--- a/runtime/vm/intermediate_language.cc
+++ b/runtime/vm/intermediate_language.cc
@@ -1455,12 +1455,12 @@ LocationSummary* JoinEntryInstr::MakeLocationSummary() const {
 
 
 void JoinEntryInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
+  __ Bind(compiler->GetJumpLabel(this));
   if (!compiler->is_optimizing()) {
     compiler->AddCurrentDescriptor(PcDescriptors::kDeopt,
                                    deopt_id_,
                                    Scanner::kDummyTokenIndex);
   }
-  __ Bind(compiler->GetJumpLabel(this));
   if (HasParallelMove()) {
     compiler->parallel_move_resolver()->EmitNativeCode(parallel_move());
   }
@@ -1474,12 +1474,12 @@ LocationSummary* TargetEntryInstr::MakeLocationSummary() const {
 
 
 void TargetEntryInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
+  __ Bind(compiler->GetJumpLabel(this));
   if (!compiler->is_optimizing()) {
     compiler->AddCurrentDescriptor(PcDescriptors::kDeopt,
                                    deopt_id_,
                                    Scanner::kDummyTokenIndex);
   }
-  __ Bind(compiler->GetJumpLabel(this));
   if (HasParallelMove()) {
     compiler->parallel_move_resolver()->EmitNativeCode(parallel_move());
   }