[csa] Re-introduce automatic constant folding for IntPtrAdd and IntPtrSub

test/unittests/interpreter/interpreter-assembler-unittest.cc

Index: test/unittests/interpreter/interpreter-assembler-unittest.cc
diff --git a/test/unittests/interpreter/interpreter-assembler-unittest.cc b/test/unittests/interpreter/interpreter-assembler-unittest.cc
index 68ff04298d339c93f1a287a466ea651da7c9373e..f80e8a3f8021e3ff659fbd3f29f7cc45372a4598 100644
--- a/test/unittests/interpreter/interpreter-assembler-unittest.cc
+++ b/test/unittests/interpreter/interpreter-assembler-unittest.cc
@@ -563,7 +563,7 @@ TARGET_TEST_F(InterpreterAssemblerTest, IntPtrAdd) {
   TRACED_FOREACH(interpreter::Bytecode, bytecode, kBytecodes) {
     InterpreterAssemblerTestState state(this, bytecode);
     InterpreterAssemblerForTest m(&state, bytecode);
-    Node* a = m.Int32Constant(0);
+    Node* a = m.Parameter(0);
     Node* b = m.Int32Constant(1);
     Node* add = m.IntPtrAdd(a, b);
     EXPECT_THAT(add, IsIntPtrAdd(a, b));
@@ -574,7 +574,7 @@ TARGET_TEST_F(InterpreterAssemblerTest, IntPtrSub) {
   TRACED_FOREACH(interpreter::Bytecode, bytecode, kBytecodes) {
     InterpreterAssemblerTestState state(this, bytecode);
     InterpreterAssemblerForTest m(&state, bytecode);
-    Node* a = m.Int32Constant(0);
+    Node* a = m.Parameter(0);
     Node* b = m.Int32Constant(1);
     Node* add = m.IntPtrSub(a, b);
     EXPECT_THAT(add, IsIntPtrSub(a, b));