vendor(simplecpp): Update simplecpp.{h,cpp} to master (538c5c4); was v1.2.0 (a853253)

Upstream: danmar/simplecpp@538c5c4
Source date: 2025-08-23
Files:   generator/simplecpp/simplecpp.h, generator/simplecpp/simplecpp.cpp
Patch:   generator/simplecpp/do_not_stop_on_error.patch re-applied

Compare: danmar/simplecpp@a853253...538c5c4

Author: jcfr

generator/main.cpp

@@ -155,7 +155,7 @@ namespace
       std::unique_ptr<simplecpp::TokenList> rawtokens(new simplecpp::TokenList(ba.constData(), ba.size(), files, {}, &outputList));
       rawtokens->removeComments();
       simplecpp::TokenList outputTokens(files);
-      std::map<std::string, simplecpp::TokenList*> filedata;
+      simplecpp::FileDataCache filedata;
       simplecpp::preprocess(outputTokens, *rawtokens, files, filedata, dui, &outputList);
       simplecpp::cleanup(filedata);
       rawtokens.reset();

generator/simplecpp/README.txt

@@ -1,4 +1,4 @@
-This code is taken from https://github.com/danmar/simplecpp, version 1.2.0 (a853253)
+This code is taken from https://github.com/danmar/simplecpp, version post-1.5.2 (538c5c4)
 
 The code was released under the 0BSD license (see LICENSE file).