[builtins] implement Array.prototype.includes in TurboFan

src/code-stub-assembler.h

Index: src/code-stub-assembler.h
diff --git a/src/code-stub-assembler.h b/src/code-stub-assembler.h
index e3c4a13c23a3a13b5d54479ea696c445d99e5914..35465a2c4f5f7181c66ca155cd3f167b8f54c9f8 100644
--- a/src/code-stub-assembler.h
+++ b/src/code-stub-assembler.h
@@ -114,6 +114,10 @@ class CodeStubAssembler : public compiler::CodeAssembler {
     BranchIfFloat64Equal(value, value, if_false, if_true);
   }
 
+  void BranchIfSameValueZero(compiler::Node* a, compiler::Node* b,
+                             compiler::Node* context, Label* if_true,
+                             Label* if_false);
+
   // Load value from current frame by given offset in bytes.
   compiler::Node* LoadFromFrame(int offset,
                                 MachineType rep = MachineType::AnyTagged());