Don't use anonymous types declared in an anonymous union.

include/v8.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 3823 matching lines @@
   // Size of the instructions.
   size_t code_len;
   // Script info for CODE_ADDED event.
   Handle<Script> script;
   // User-defined data for *_LINE_INFO_* event. It's used to hold the source
   // code line information which is returned from the
   // CODE_START_LINE_INFO_RECORDING event. And it's passed to subsequent
   // CODE_ADD_LINE_POS_INFO and CODE_END_LINE_INFO_RECORDING events.
   void* user_data;
 
+  struct name_t {
+    // Name of the object associated with the code, note that the string is not
+    // zero-terminated.
+    const char* str;
+    // Number of chars in str.
+    size_t len;
+  };
+
+  struct line_info_t {
+    // PC offset
+    size_t offset;
+    // Code postion
+    size_t pos;
+    // The position type.
+    PositionType position_type;
+  };
+
   union {
     // Only valid for CODE_ADDED.
-    struct {
-      // Name of the object associated with the code, note that the string is
-      // not zero-terminated.
-      const char* str;
-      // Number of chars in str.
-      size_t len;
-    } name;
+    struct name_t name;
 
     // Only valid for CODE_ADD_LINE_POS_INFO
-    struct {
-      // PC offset
-      size_t offset;
-      // Code postion
-      size_t pos;
-      // The position type.
-      PositionType position_type;
-    } line_info;
+    struct line_info_t line_info;
 
     // New location of instructions. Only valid for CODE_MOVED.
     void* new_code_start;
   };
 };
 
 /**
  * Option flags passed to the SetJitCodeEventHandler function.
  */
 enum JitCodeEventOptions {
@@ skipping 2117 matching lines @@
 
 
 }  // namespace v8
 
 
 #undef V8EXPORT
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_