[turbofan] Unify custom node matchers.

src/compiler/node-matchers.cc

Index: src/compiler/node-matchers.cc
diff --git a/src/compiler/node-matchers.cc b/src/compiler/node-matchers.cc
new file mode 100644
index 0000000000000000000000000000000000000000..c90f19fde895c97a88707b8dda5d8602f755f3b6
--- /dev/null
+++ b/src/compiler/node-matchers.cc
@@ -0,0 +1,45 @@
+// 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.
+
+#include "src/compiler/node-matchers.h"
+
+#include "src/compiler/js-operator.h"
+#include "src/compiler/node-properties-inl.h"
+
+namespace v8 {
+namespace internal {
+namespace compiler {
+
+Node* JSCallFunctionMatcher::frame_state() const {
+  DCHECK(OperatorProperties::HasFrameStateInput(op()));
+  return NodeProperties::GetFrameStateInput(node());
+}
+
+
+JSCallFunctionMatcher::const_iterator JSCallFunctionMatcher::begin() const {
+  // Skip the function input.
+  return node()->inputs().begin() + 1;
+}
+
+
+JSCallFunctionMatcher::const_iterator JSCallFunctionMatcher::end() const {
+  return begin() + size();
+}
+
+
+size_t JSCallFunctionMatcher::size() const {
+  // The value input count includes function and receiver.
+  size_t const value_input_count = op()->ValueInputCount();
+  DCHECK_LE(2, value_input_count);
+  return value_input_count - 1;
+}
+
+
+const Runtime::Function* JSCallRuntimeMatcher::function() const {
+  return Runtime::FunctionForId(CallRuntimeParametersOf(node()->op()).id());
+}
+
+}  // namespace compiler
+}  // namespace internal
+}  // namespace v8