[formatting] Remove all double blank lines in WASM code.

src/wasm/wasm-opcodes.cc

 // 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.
 
 #include "src/wasm/wasm-opcodes.h"
 #include "src/messages.h"
 #include "src/signature.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 33 matching lines @@
     os << WasmOpcodes::ShortNameOf(sig.GetReturn(i));
   }
   os << "_";
   if (sig.parameter_count() == 0) os << "v";
   for (size_t i = 0; i < sig.parameter_count(); i++) {
     os << WasmOpcodes::ShortNameOf(sig.GetParam(i));
   }
   return os;
 }
 
-
 #define DECLARE_SIG_ENUM(name, ...) kSigEnum_##name,
 
-
 enum WasmOpcodeSig { FOREACH_SIGNATURE(DECLARE_SIG_ENUM) };
 
-
 // TODO(titzer): not static-initializer safe. Wrap in LazyInstance.
 #define DECLARE_SIG(name, ...)                      \
   static LocalType kTypes_##name[] = {__VA_ARGS__}; \
   static const FunctionSig kSig_##name(             \
       1, static_cast<int>(arraysize(kTypes_##name)) - 1, kTypes_##name);
 
 FOREACH_SIGNATURE(DECLARE_SIG)
 
 #define DECLARE_SIG_ENTRY(name, ...) &kSig_##name,
 
 static const FunctionSig* kSimpleExprSigs[] = {
     nullptr, FOREACH_SIGNATURE(DECLARE_SIG_ENTRY)};
 
 static byte kSimpleExprSigTable[256];
 
-
 // Initialize the signature table.
 static void InitSigTable() {
 #define SET_SIG_TABLE(name, opcode, sig) \
   kSimpleExprSigTable[opcode] = static_cast<int>(kSigEnum_##sig) + 1;
   FOREACH_SIMPLE_OPCODE(SET_SIG_TABLE);
   FOREACH_ASMJS_COMPAT_OPCODE(SET_SIG_TABLE);
 #undef SET_SIG_TABLE
 }
 
-
 FunctionSig* WasmOpcodes::Signature(WasmOpcode opcode) {
   // TODO(titzer): use LazyInstance to make this thread safe.
   if (kSimpleExprSigTable[kExprI32Add] == 0) InitSigTable();
   return const_cast<FunctionSig*>(
       kSimpleExprSigs[kSimpleExprSigTable[static_cast<byte>(opcode)]]);
 }
 
-
 // TODO(titzer): pull WASM_64 up to a common header.
 #if !V8_TARGET_ARCH_32_BIT || V8_TARGET_ARCH_X64
 #define WASM_64 1
 #else
 #define WASM_64 0
 #endif
 
 int WasmOpcodes::TrapReasonToMessageId(TrapReason reason) {
   switch (reason) {
 #define TRAPREASON_TO_MESSAGE(name) \
   case k##name:                     \
     return MessageTemplate::kWasm##name;
     FOREACH_WASM_TRAPREASON(TRAPREASON_TO_MESSAGE)
 #undef TRAPREASON_TO_MESSAGE
     default:
       return MessageTemplate::kNone;
   }
 }
 
 const char* WasmOpcodes::TrapReasonMessage(TrapReason reason) {
   return MessageTemplate::TemplateString(TrapReasonToMessageId(reason));
 }
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8