[wasm] Binary 11: AST changes.

src/wasm/ast-decoder.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_WASM_AST_DECODER_H_
 #define V8_WASM_AST_DECODER_H_
 
 #include "src/signature.h"
 #include "src/wasm/decoder.h"
 #include "src/wasm/wasm-opcodes.h"
@@ skipping 71 matching lines @@
   MachineType machine_type;
   int length;
 
   inline GlobalIndexOperand(Decoder* decoder, const byte* pc) {
     index = decoder->checked_read_u32v(pc, 1, &length, "global index");
     type = kAstStmt;
     machine_type = MachineType::None();
   }
 };
 
-struct Block;
+struct Control;
 struct BreakDepthOperand {
   uint32_t depth;
-  Block* target;
+  Control* target;
   int length;
   inline BreakDepthOperand(Decoder* decoder, const byte* pc) {
     depth = decoder->checked_read_u32v(pc, 1, &length, "break depth");
     target = nullptr;
   }
 };
 
 struct BlockCountOperand {
   uint32_t count;
   int length;
@@ skipping 119 matching lines @@
 int OpcodeLength(const byte* pc, const byte* end);
 
 // Computes the arity (number of sub-nodes) of the opcode at the given address.
 int OpcodeArity(ModuleEnv* module, FunctionSig* sig, const byte* pc,
                 const byte* end);
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_WASM_AST_DECODER_H_