[wasm] All strings are length-prefixed and inline

src/wasm/wasm-opcodes.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_OPCODES_H_
 #define V8_WASM_OPCODES_H_
 
 #include "src/machine-type.h"
 #include "src/signature.h"
 
@@ skipping 50 matching lines @@
 
   // Bitfields for the various annotations for memory accesses.
   typedef BitField<Alignment, 7, 1> AlignmentField;
   typedef BitField<Atomicity, 5, 2> AtomicityField;
   typedef BitField<bool, 4, 1> OffsetField;
 };
 
 typedef Signature<LocalType> FunctionSig;
 std::ostream& operator<<(std::ostream& os, const FunctionSig& function);
 
+struct WasmName {
+  const char* name;
+  uint32_t length;
+};
+
 // TODO(titzer): Renumber all the opcodes to fill in holes.
 
 // Control expressions and blocks.
 #define FOREACH_CONTROL_OPCODE(V) \
   V(Nop, 0x00, _)                 \
   V(Block, 0x01, _)               \
   V(Loop, 0x02, _)                \
   V(If, 0x03, _)                  \
   V(IfElse, 0x04, _)              \
   V(Select, 0x05, _)              \
@@ skipping 408 matching lines @@
       default:
         return "<unknown>";
     }
   }
 };
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_WASM_OPCODES_H_