YT-19324: move YT provider to ydb/library/yql

This commit is formed by the following script: https://paste.yandex-team.ru/6f92e4b8-efc5-4d34-948b-15ee2accd7e7/text.
This commit has zero effect on all projects that depend on YQL.

The summary of changes:
- `yql/providers/yt -> ydb/library/yql/providers/yt `- the whole implementation of YT provider is moved into YDB code base for further export as a part of YT YQL plugin shared library;
- `yql/providers/stat/{expr_nodes,uploader} -> ydb/library/yql/providers/stat/{expr_nodes,uploader}` - a small interface without implementation and the description of stat expr nodes;
- `yql/core/extract_predicate/ut -> ydb/library/yql/core/extract_predicate/ut`;
- `yql/core/{ut,ut_common} -> ydb/library/yql/core/{ut,ut_common}`;
- `yql/core` is gone;
- `yql/library/url_preprocessing -> ydb/library/yql/core/url_preprocessing`.

**NB**: all new targets inside `ydb/` are under `IF (NOT CMAKE_EXPORT)` clause which disables them from open-source cmake generation and ya make build. They will be enabled in the subsequent commits.

1 files changed, 36 insertions, 0 deletions

diff --git a/library/cpp/dwarf_backtrace/backtrace.h b/library/cpp/dwarf_backtrace/backtrace.h
new file mode 100644
index 00000000000..62ec36dba5f
--- /dev/null
+++ b/library/cpp/dwarf_backtrace/backtrace.h
@@ -0,0 +1,36 @@
+#pragma once
+
+#include <util/generic/array_ref.h>
+#include <util/generic/maybe.h>
+#include <util/generic/string.h>
+#include <util/generic/vector.h>
+
+#include <functional>
+
+namespace NDwarf {
+    struct TLineInfo {
+        TString FileName;
+        int Line;
+        int Col;
+        TString FunctionName;
+        uintptr_t Address;
+        int Index;
+    };
+
+    struct TError {
+        int Code;
+        TString Message;
+    };
+
+    enum class EResolving {
+        Continue = 0,
+        Break = 1,
+    };
+
+    using TCallback = std::function<EResolving(const TLineInfo&)>;
+
+    // Resolves backtrace addresses and calls the callback for all line infos of inlined functions there.
+    // Stops execution if the callback returns `EResolving::Break`.
+    [[nodiscard]] TMaybe<TError> ResolveBacktrace(TArrayRef<const void* const> backtrace, TCallback callback);
+
+}