deps: V8: fix filename manipulation for Windows

Backport-PR-URL: #28005
PR-URL: #27375
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

common.gypi

@@ -38,7 +38,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.0',
+    'v8_embedder_string': '-node.1',
 
     ##### V8 defaults for Node.js #####
 

deps/v8/src/snapshot/embedded-file-writer.cc

@@ -819,7 +819,11 @@ void PlatformDependentEmbeddedFileWriter::DeclareExternalFilename(
   // Replace any Windows style paths (backslashes) with forward
   // slashes.
   std::string fixed_filename(filename);
-  std::replace(fixed_filename.begin(), fixed_filename.end(), '\\', '/');
+  for (auto& c : fixed_filename) {
+    if (c == '\\') {
+      c = '/';
+    }
+  }
   fprintf(fp_, ".file %d \"%s\"\n", fileid, fixed_filename.c_str());
 }
 

deps/v8/src/torque/csa-generator.cc

@@ -56,10 +56,14 @@ Stack<std::string> CSAGenerator::EmitBlock(const Block* block) {
 }
 
 void CSAGenerator::EmitSourcePosition(SourcePosition pos, bool always_emit) {
-  const std::string& file = SourceFileMap::GetSource(pos.source);
+  std::string file = SourceFileMap::GetSource(pos.source);
   if (always_emit || !previous_position_.CompareStartIgnoreColumn(pos)) {
     // Lines in Torque SourcePositions are zero-based, while the
     // CodeStubAssembler and downwind systems are one-based.
+    for (auto& c : file) {
+      if (c == '\\')
+        c = '/';
+    }
     out_ << "    ca_.SetSourcePosition(\"" << file << "\", "
          << (pos.start.line + 1) << ");\n";
     previous_position_ = pos;