[es2015] Remove the @@hasInstance protector cell.

src/full-codegen/mips64/full-codegen-mips64.cc

Index: src/full-codegen/mips64/full-codegen-mips64.cc
diff --git a/src/full-codegen/mips64/full-codegen-mips64.cc b/src/full-codegen/mips64/full-codegen-mips64.cc
index 151add2a71be3bbf8e50d9f0107c5ba5552b9f40..e7808770816a40ad35ff7cfb0d5b60f4dd8a8b4f 100644
--- a/src/full-codegen/mips64/full-codegen-mips64.cc
+++ b/src/full-codegen/mips64/full-codegen-mips64.cc
@@ -2686,6 +2686,7 @@ void FullCodeGenerator::VisitCompareOperation(CompareOperation* expr) {
       __ mov(a0, result_register());
       PopOperand(a1);
       __ Call(isolate()->builtins()->InstanceOf(), RelocInfo::CODE_TARGET);
+      RestoreContext();
       PrepareForBailoutBeforeSplit(expr, false, NULL, NULL);
       __ LoadRoot(a4, Heap::kTrueValueRootIndex);
       Split(eq, v0, Operand(a4), if_true, if_false, fall_through);