[WASM] Exception handling prototype.

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 37 matching lines @@
   V(Block, 0x01, _)               \
   V(Loop, 0x02, _)                \
   V(If, 0x03, _)                  \
   V(Else, 0x04, _)                \
   V(Select, 0x05, _)              \
   V(Br, 0x06, _)                  \
   V(BrIf, 0x07, _)                \
   V(BrTable, 0x08, _)             \
   V(Return, 0x09, _)              \
   V(Unreachable, 0x0a, _)         \
+  V(Throw, 0xfa, _)               \
+  V(TryCatch, 0xfb, _)            \
+  V(TryCatchFinally, 0xfc, _)     \
+  V(TryFinally, 0xfd, _)          \
+  V(Catch, 0xfe, _)               \
+  V(Finally, 0xff, _)             \
   V(End, 0x0F, _)
 
 // Constants, locals, globals, and calls.
 #define FOREACH_MISC_OPCODE(V) \
   V(I32Const, 0x10, _)         \
   V(I64Const, 0x11, _)         \
   V(F64Const, 0x12, _)         \
   V(F32Const, 0x13, _)         \
   V(GetLocal, 0x14, _)         \
   V(SetLocal, 0x15, _)         \
@@ skipping 560 matching lines @@
       default:
         return "<unknown>";
     }
   }
 };
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_WASM_OPCODES_H_