iwyu: Fix new errors happening in build-llvm job

Author: ryanofsky

include/mp/util.h

@@ -7,13 +7,14 @@
 
 #include <capnp/schema.h>
 #include <cassert>
-#include <cstddef>
+#include <cstdlib>
 #include <cstring>
 #include <functional>
 #include <kj/string-tree.h>
 #include <mutex>
 #include <string>
 #include <tuple>
+#include <typeinfo>
 #include <type_traits>
 #include <utility>
 #include <variant>

src/mp/gen.cpp

@@ -238,8 +238,11 @@ static void Generate(kj::StringPtr src_prefix,
     cpp_types << "// Generated by " PROXY_BIN " from " << src_file << "\n\n";
     cpp_types << "// IWYU pragma: no_include \"mp/proxy.h\"\n";
     cpp_types << "// IWYU pragma: no_include \"mp/proxy-io.h\"\n";
+    cpp_types << "#include <" << include_path << ".h> // IWYU pragma: keep\n";
     cpp_types << "#include <" << include_path << ".proxy.h>\n";
     cpp_types << "#include <" << include_path << ".proxy-types.h> // IWYU pragma: keep\n";
+    cpp_types << "#include <kj/common.h>\n";
+    cpp_types << "#include <mp/util.h>\n";
     cpp_types << "#include <" << PROXY_TYPES << ">\n\n";
     cpp_types << "namespace mp {\n";
 

src/mp/proxy.cpp

@@ -12,6 +12,7 @@
 
 #include <atomic>
 #include <capnp/capability.h>
+#include <capnp/common.h> // IWYU pragma: keep
 #include <capnp/rpc.h>
 #include <condition_variable>
 #include <functional>

src/mp/util.cpp

@@ -2,14 +2,14 @@
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
-#include <mp/config.h>
+#include <mp/config.h> // IWYU pragma: keep
 #include <mp/util.h>
 
 #include <cerrno>
 #include <cstdio>
 #include <kj/common.h>
 #include <kj/string-tree.h>
-#include <pthread.h>
+#include <pthread.h> // IWYU pragma: keep
 #include <sstream>
 #include <string>
 #include <sys/resource.h>