[Interpreter] Transform StrictEquality with null/undefined to special bytecodes.

src/compiler/bytecode-graph-builder.cc

Index: src/compiler/bytecode-graph-builder.cc
diff --git a/src/compiler/bytecode-graph-builder.cc b/src/compiler/bytecode-graph-builder.cc
index 07236118a0c59bcb8ec66b72a92a80835f8e217a..28901ad42b05af6a5a4f851b432ce2907e6b48e1 100644
--- a/src/compiler/bytecode-graph-builder.cc
+++ b/src/compiler/bytecode-graph-builder.cc
@@ -1651,6 +1651,22 @@ void BytecodeGraphBuilder::VisitTestUndetectable() {
   environment()->BindAccumulator(node);
 }
 
+void BytecodeGraphBuilder::VisitTestNull() {
+  Node* object =
+      environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(0));
+  Node* result = NewNode(javascript()->StrictEqual(CompareOperationHint::kAny),
+                         object, jsgraph()->NullConstant());
+  environment()->BindAccumulator(result);
+}
+
+void BytecodeGraphBuilder::VisitTestUndefined() {
+  Node* object =
+      environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(0));
+  Node* result = NewNode(javascript()->StrictEqual(CompareOperationHint::kAny),
+                         object, jsgraph()->UndefinedConstant());
+  environment()->BindAccumulator(result);
+}
+
 void BytecodeGraphBuilder::BuildCastOperator(const Operator* js_op) {
   PrepareEagerCheckpoint();
   Node* value = NewNode(js_op, environment()->LookupAccumulator());