Fix compile error with Windows clang.

src/common/windows/pdb_source_line_writer.cc

 // Copyright (c) 2006, Google Inc.
 // 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
@@ skipping 259 matching lines @@
 
   // If the decorated name didn't give the parameter size, try to
   // calculate it.
   if (stack_param_size < 0) {
     stack_param_size = GetFunctionStackParamSize(function);
   }
 
   AddressRangeVector ranges;
   MapAddressRange(image_map_, AddressRange(rva, static_cast<DWORD>(length)),
                   &ranges);
+  wstring wname(name);
   for (size_t i = 0; i < ranges.size(); ++i) {
     fprintf(output_, "FUNC %x %x %x %ws\n",
-            ranges[i].rva, ranges[i].length, stack_param_size, name);
+            ranges[i].rva, ranges[i].length, stack_param_size, wname.c_str());
   }
 
   CComPtr<IDiaEnumLineNumbers> lines;
   if (FAILED(session_->findLinesByRVA(rva, DWORD(length), &lines))) {
     return false;
   }
 
   if (!PrintLines(lines)) {
     return false;
   }
@@ skipping 30 matching lines @@
 
       CComBSTR file_name;
       if (FAILED(file->get_fileName(&file_name))) {
         return false;
       }
 
       wstring file_name_string(file_name);
       if (!FileIDIsCached(file_name_string)) {
         // this is a new file name, cache it and output a FILE line.
         CacheFileID(file_name_string, file_id);
-        fwprintf(output_, L"FILE %d %s\n", file_id, file_name);
+        fwprintf(output_, L"FILE %d %ws\n", file_id, file_name_string.c_str());
       } else {
         // this file name has already been seen, just save this
         // ID for later lookup.
         StoreDuplicateFileID(file_name_string, file_id);
       }
       file.Release();
     }
     compiland.Release();
   }
   return true;
@@ skipping 277 matching lines @@
                            prolog_ranges[i].length,
                            prolog_ranges[i].length };
           frame_infos.push_back(fi);
         }
         for (size_t i = 0; i < code_ranges.size(); ++i) {
           FrameInfo fi = { code_ranges[i].rva, code_ranges[i].length, 0 };
           frame_infos.push_back(fi);
         }
       }
 
+      wstring wprogram_string(program_string);
       for (size_t i = 0; i < frame_infos.size(); ++i) {
         const FrameInfo& fi(frame_infos[i]);
         fprintf(output_, "STACK WIN %x %x %x %x %x %x %x %x %x %d ",
                 type, fi.rva, fi.code_size, fi.prolog_size,
                 0 /* epilog_size */, parameter_size, saved_register_size,
                 local_size, max_stack_size, program_string_result == S_OK);
         if (program_string_result == S_OK) {
-          fprintf(output_, "%ws\n", program_string);
+          fprintf(output_, "%ws\n", wprogram_string.c_str());
         } else {
           fprintf(output_, "%d\n", allocates_base_pointer);
         }
       }
 
       last_type = type;
       last_rva = rva;
       last_code_size = code_size;
       last_prolog_size = prolog_size;
     }
@@ skipping 163 matching lines @@
 
   CComBSTR name;
   int stack_param_size;
   if (!GetSymbolFunctionName(symbol, &name, &stack_param_size)) {
     return false;
   }
 
   AddressRangeVector ranges;
   MapAddressRange(image_map_, AddressRange(rva, 1), &ranges);
   for (size_t i = 0; i < ranges.size(); ++i) {
+    wstring wname(name);
     fprintf(output_, "PUBLIC %x %x %ws\n", ranges[i].rva,
-            stack_param_size > 0 ? stack_param_size : 0, name);
+            stack_param_size > 0 ? stack_param_size : 0, wname.c_str());
   }
   return true;
 }
 
 bool PDBSourceLineWriter::PrintPDBInfo() {
   PDBModuleInfo info;
   if (!GetModuleInfo(&info)) {
     return false;
   }
 
@@ skipping 482 matching lines @@
   // an old-style CodeView record if a real 128-bit GUID has its first 32
   // bits set the same as the module's signature (timestamp) and the rest of
   // the GUID is set to 0.  This is highly unlikely.
 
   GUID signature_guid = {signature};  // 0-initializes other members
   *uses_guid = !IsEqualGUID(guid, signature_guid);
   return true;
 }
 
 }  // namespace google_breakpad