[wasm] Prerequisites for WebAssembly Table.Grow

src/compiler/wasm-compiler.h

 // Copyright 2015 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_COMPILER_WASM_COMPILER_H_
 #define V8_COMPILER_WASM_COMPILER_H_
 
 #include <memory>
 
 // Clients of this interface shouldn't depend on lots of compiler internals.
@@ skipping 220 matching lines @@
 
  private:
   static const int kDefaultBufferSize = 16;
   friend class WasmTrapHelper;
 
   Zone* zone_;
   JSGraph* jsgraph_;
   wasm::ModuleEnv* module_ = nullptr;
   Node* mem_buffer_ = nullptr;
   Node* mem_size_ = nullptr;
+  NodeVector signature_tables_;
   NodeVector function_tables_;
   NodeVector function_table_sizes_;
   Node** control_ = nullptr;
   Node** effect_ = nullptr;
   Node** cur_buffer_;
   size_t cur_bufsize_;
   Node* def_buffer_[kDefaultBufferSize];
   bool has_simd_ = false;
 
   WasmTrapHelper* trap_;
@@ skipping 120 matching lines @@
   }
 
   int AddParameterNodes(Node** args, int pos, int param_count,
                         wasm::FunctionSig* sig);
 };
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_WASM_COMPILER_H_