[turbofan] Reland of `Add alignment parameter to StackSlot operator`

test/unittests/compiler/node-test-utils.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_UNITTESTS_COMPILER_NODE_TEST_UTILS_H_
 #define V8_UNITTESTS_COMPILER_NODE_TEST_UTILS_H_
 
 #include "src/compiler/machine-operator.h"
 #include "src/compiler/simplified-operator.h"
 #include "src/machine-type.h"
@@ skipping 316 matching lines @@
                        const Matcher<Node*>& base_matcher,
                        const Matcher<Node*>& index_matcher,
                        const Matcher<Node*>& value_matcher,
                        const Matcher<Node*>& effect_matcher,
                        const Matcher<Node*>& control_matcher);
 Matcher<Node*> IsUnalignedStore(
     const Matcher<UnalignedStoreRepresentation>& rep_matcher,
     const Matcher<Node*>& base_matcher, const Matcher<Node*>& index_matcher,
     const Matcher<Node*>& value_matcher, const Matcher<Node*>& effect_matcher,
     const Matcher<Node*>& control_matcher);
-Matcher<Node*> IsStackSlot(const Matcher<int>& size_matcher);
+Matcher<Node*> IsStackSlot(const Matcher<StackSlotRepresentation>& rep_matcher);
 Matcher<Node*> IsWord32And(const Matcher<Node*>& lhs_matcher,
                            const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsWord32Or(const Matcher<Node*>& lhs_matcher,
                           const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsWord32Xor(const Matcher<Node*>& lhs_matcher,
                            const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsWord32Sar(const Matcher<Node*>& lhs_matcher,
                            const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsWord32Shl(const Matcher<Node*>& lhs_matcher,
                            const Matcher<Node*>& rhs_matcher);
@@ skipping 123 matching lines @@
                                const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsWord32ReverseBytes(const Matcher<Node*>& value_matcher);
 
 Matcher<Node*> IsStackSlot();
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_UNITTESTS_COMPILER_NODE_TEST_UTILS_H_