Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/clang-tools-extra/test/clang-tidy/Inputs/Headers/cross-file-c.h

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+// The line number of the following include should match the location of the
+// corresponding comment in llvm-include-order.cpp
+#include "cross-file-b.h"

external/llvm-project/clang-tools-extra/test/clang-tidy/Inputs/Headers/system-header-simulation.h

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+#pragma clang system_header
+
+namespace std {
+
+template<class T, T v>
+struct integral_constant {
+    static constexpr T value = v;
+    typedef T value_type;
+    typedef integral_constant type;
+    constexpr operator value_type() const noexcept { return value; }
+};
+
+template <bool B>
+using bool_constant = integral_constant<bool, B>;
+using true_type = bool_constant<true>;
+using false_type = bool_constant<false>;
+
+template<class T>
+struct is_error_code_enum : false_type {};
+
+template<class T>
+void swap(T &a, T &b);
+}
+

external/llvm-project/clang-tools-extra/test/clang-tidy/Inputs/compilation-database/template.json

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+[
+{
+  "directory": "test_dir/a",
+  "command": "clang++ -o test.o test_dir/a/a.cpp",
+  "file": "test_dir/a/a.cpp"
+},
+{
+  "directory": "test_dir/a",
+  "command": "clang++ -o test.o test_dir/a/b.cpp",
+  "file": "test_dir/a/b.cpp"
+},
+{
+  "directory": "test_dir/",
+  "command": "clang++ -o test.o test_dir/b/b.cpp",
+  "file": "test_dir/b/b.cpp"
+},
+{
+  "directory": "test_dir/b",
+  "command": "clang++ -o test.o ../b/c.cpp",
+  "file": "test_dir/b/c.cpp"
+},
+{
+  "directory": "test_dir/b",
+  "command": "clang++ -I../include -o test.o ../b/d.cpp",
+  "file": "test_dir/b/d.cpp"
+},
+{
+  "directory": "test_dir/",
+  "command": "clang++ -o test.o test_dir/b/not-exist.cpp",
+  "file": "test_dir/b/not-exist.cpp"
+}
+]

external/llvm-project/clang-tools-extra/test/clang-tidy/Inputs/config-files/.clang-tidy

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+Checks: 'from-parent'
+HeaderFilterRegex: 'parent'

external/llvm-project/clang-tools-extra/test/clang-tidy/Inputs/config-files/1/.clang-tidy

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+Checks: 'from-child1'
+HeaderFilterRegex: 'child1'

external/llvm-project/clang-tools-extra/test/clang-tidy/Inputs/explain-config/.clang-tidy

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+Checks: '-*,modernize-use-nullptr'

external/llvm-project/clang-tools-extra/test/clang-tidy/Inputs/file-filter/header1.h

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+class A1 { A1(int); };

external/llvm-project/clang-tools-extra/test/clang-tidy/Inputs/file-filter/header2.h

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+class A2 { A2(int); };