[wasm] Master CL for Binary 0xC changes.

src/wasm/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_DECODER_H_
 #define V8_WASM_DECODER_H_
 
 #include <memory>
 
 #include "src/base/compiler-specific.h"
@@ skipping 190 matching lines @@
       } else {
         TRACE("= %u\n", result);
       }
       return result;
     }
     return traceOffEnd<uint32_t>();
   }
 
   // Consume {size} bytes and send them to the bit bucket, advancing {pc_}.
   void consume_bytes(int size) {
+    TRACE("  +%d  %-20s: %d bytes\n", static_cast<int>(pc_ - start_), "skip",
+          size);
     if (checkAvailable(size)) {
       pc_ += size;
     } else {
+      pc_ = limit_;
+    }
+  }
+
+  // Consume {size} bytes and send them to the bit bucket, advancing {pc_}.
+  void consume_bytes(uint32_t size, const char* name = "skip") {
+    TRACE("  +%d  %-20s: %d bytes\n", static_cast<int>(pc_ - start_), name,
+          size);
+    if (checkAvailable(size)) {
+      pc_ += size;
+    } else {
       pc_ = limit_;
     }
   }
 
   // Check that at least {size} bytes exist between {pc_} and {limit_}.
   bool checkAvailable(int size) {
     intptr_t pc_overflow_value = std::numeric_limits<intptr_t>::max() - size;
     if (size < 0 || (intptr_t)pc_ > pc_overflow_value) {
       error(pc_, nullptr, "reading %d bytes would underflow/overflow", size);
       return false;
@@ skipping 147 matching lines @@
     return result;
   }
 };
 
 #undef TRACE
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_WASM_DECODER_H_