pch: precompile common schema and mutation headers

Add the core schema, type, token, and mutation headers that are used by a
large fraction of translation units to stdafx.hh.

Also add the local include directories required for the dedicated PCH
library target and qualify the GCP object-storage stream parameter for the
broader PCH environment.

CMakeLists.txt

@@ -234,6 +234,9 @@ generate_scylla_version()
 
 option(Scylla_USE_PRECOMPILED_HEADER "Use precompiled header for Scylla" ON)
 add_library(scylla-precompiled-header STATIC exported_templates.cc)
+target_include_directories(scylla-precompiled-header PRIVATE
+    "${CMAKE_CURRENT_SOURCE_DIR}"
+    "${scylla_gen_build_dir}")
 target_link_libraries(scylla-precompiled-header PRIVATE
     absl::headers
     absl::btree

stdafx.hh

@@ -400,4 +400,27 @@
 #define ZSTD_STATIC_LINKING_ONLY
 #include <zstd.h>
 
+// Scylla internal headers included by most translation units
+#include "bytes.hh"
+#include "db/timeout_clock.hh"
+#include "db_clock.hh"
+#include "dht/token.hh"
+#include "gc_clock.hh"
+#include "gms/inet_address.hh"
+#include "keys/keys.hh"
+#include "locator/host_id.hh"
+#include "locator/token_metadata_fwd.hh"
+#include "locator/types.hh"
+#include "mutation/mutation_fragment.hh"
+#include "mutation/mutation_partition.hh"
+#include "schema/schema.hh"
+#include "schema/schema_fwd.hh"
+#include "seastarx.hh"
+#include "types/types.hh"
+#include "utils/chunked_vector.hh"
+#include "utils/fragment_range.hh"
+#include "utils/managed_bytes.hh"
+#include "utils/tagged_integer.hh"
+#include "utils/UUID.hh"
+
 #endif

utils/gcp/object_storage.cc

@@ -335,7 +335,7 @@ utils::gcp::storage::client::impl::send_with_retry(const std::string& path, cons
         } catch (...) {
             // just disregard the failure, we will retry below in the wrapped handler
         }
-        auto wrapped_handler = [this, handler = std::move(handler), &req, scope](const reply& rep, input_stream<char>& in) -> future<> {
+        auto wrapped_handler = [this, handler = std::move(handler), &req, scope](const reply& rep, seastar::input_stream<char>& in) -> future<> {
             auto _in = std::move(in);
             auto status_class = reply::classify_status(rep._status);
             /*