Implement the function.sent proposal.

src/full-codegen/arm64/full-codegen-arm64.cc

Index: src/full-codegen/arm64/full-codegen-arm64.cc
diff --git a/src/full-codegen/arm64/full-codegen-arm64.cc b/src/full-codegen/arm64/full-codegen-arm64.cc
index 1790808cb8c3db12ee02f067b645fd25d58bc754..c743aa0f0545db436a55dafeaa3d83fa7486519e 100644
--- a/src/full-codegen/arm64/full-codegen-arm64.cc
+++ b/src/full-codegen/arm64/full-codegen-arm64.cc
@@ -4524,6 +4524,13 @@ void FullCodeGenerator::EmitGeneratorResume(Expression *generator,
   VisitForAccumulatorValue(value);
   __ Pop(generator_object);
 
+  // Store input value into generator object.
+  __ Str(result_register(),
+         FieldMemOperand(x1, JSGeneratorObject::kInputOffset));
+  __ Mov(x2, result_register());
+  __ RecordWriteField(x1, JSGeneratorObject::kInputOffset, x2, x3,
+                      kLRHasBeenSaved, kDontSaveFPRegs);
+
   // Load suspended function and context.
   __ Ldr(cp, FieldMemOperand(generator_object,
                              JSGeneratorObject::kContextOffset));