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diff --git a/external/vpc/public/tier0/annotations.h b/external/vpc/public/tier0/annotations.h
new file mode 100644
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+++ b/external/vpc/public/tier0/annotations.h
@@ -0,0 +1,116 @@
+#ifndef ANALYSIS_ANNOTATIONS_H
+#define ANALYSIS_ANNOTATIONS_H
+
+#if _MSC_VER >= 1600 // VS 2010 and above.
+//-----------------------------------------------------------------------------
+// Upgrading important helpful warnings to errors
+//-----------------------------------------------------------------------------
+#pragma warning(error : 4789 ) // warning C4789: destination of memory copy is too small
+
+// Suppress some code analysis warnings
+#ifdef _PREFAST_
+// Include the annotation header file.
+#include <sal.h>
+
+// /Analyze warnings can only be suppressed when using a compiler that supports them, which VS 2010
+// Professional does not.
+
+// We don't care about these warnings because they are bugs that can only occur during resource
+// exhaustion or other unexpected API failure, which we are nowhere near being able to handle.
+#pragma warning(disable : 6308) // warning C6308: 'realloc' might return null pointer: assigning null pointer to 's_ppTestCases', which is passed as an argument to 'realloc', will cause the original memory block to be leaked
+#pragma warning(disable : 6255) // warning C6255: _alloca indicates failure by raising a stack overflow exception. Consider using _malloca instead
+#pragma warning(disable : 6387) // warning C6387: 'argument 1' might be '0': this does not adhere to the specification for the function 'GetProcAddress'
+#pragma warning(disable : 6309) // warning C6309: Argument '1' is null: this does not adhere to function specification of 'GetProcAddress'
+#pragma warning(disable : 6011) // warning C6011: Dereferencing NULL pointer 'm_ppTestCases'
+#pragma warning(disable : 6211) // warning C6211: Leaking memory 'newKeyValue' due to an exception. Consider using a local catch block to clean up memory
+#pragma warning(disable : 6031) // warning C6031: Return value ignored: '_getcwd'
+
+// These warnings are because /analyze doesn't like our use of constants, especially things like IsPC()
+#pragma warning(disable : 6326) // warning C6326: Potential comparison of a constant with another constant
+#pragma warning(disable : 6239) // warning C6239: (<non-zero constant> && <expression>) always evaluates to the result of <expression>. Did you intend to use the bitwise-and operator?
+#pragma warning(disable : 6285) // warning C6285: (<non-zero constant> || <non-zero constant>) is always a non-zero constant. Did you intend to use the bitwise-and operator?
+#pragma warning(disable : 6237) // warning C6237: (<zero> && <expression>) is always zero. <expression> is never evaluated and might have side effects
+#pragma warning(disable : 6235) // warning C6235: (<non-zero constant> || <expression>) is always a non-zero constant
+#pragma warning(disable : 6240) // warning C6240: (<expression> && <non-zero constant>) always evaluates to the result of <expression>. Did you intend to use the bitwise-and operator?
+
+// These warnings aren't really important:
+#pragma warning(disable : 6323) // warning C6323: Use of arithmetic operator on Boolean type(s)
+
+// Miscellaneous other /analyze warnings. We should consider fixing these at some point.
+//#pragma warning(disable : 6204) // warning C6204: Possible buffer overrun in call to 'memcpy': use of unchecked parameter 'src'
+//#pragma warning(disable : 6262) // warning C6262: Function uses '16464' bytes of stack: exceeds /analyze:stacksize'16384'. Consider moving some data to heap
+// This is a serious warning. Don't suppress it.
+//#pragma warning(disable : 6263) // warning C6263: Using _alloca in a loop: this can quickly overflow stack
+// 6328 is also used for passing __int64 to printf when int is expected so we can't suppress it.
+//#pragma warning(disable : 6328) // warning C6328: 'char' passed as parameter '1' when 'unsigned char' is required in call to 'V_isdigit'
+// /analyze doesn't like GCOMPILER_ASSERT's implementation of compile-time asserts
+#pragma warning(disable : 6326) // warning C6326: Potential comparison of a constant with another constant
+#pragma warning(disable : 6335) // warning C6335: Leaking process information handle 'pi.hThread'
+#pragma warning(disable : 6320) // warning C6320: Exception-filter expression is the constant EXCEPTION_EXECUTE_HANDLER. This might mask exceptions that were not intended to be handled
+#pragma warning(disable : 6250) // warning C6250: Calling 'VirtualFree' without the MEM_RELEASE flag might free memory but not address descriptors (VADs). This causes address space leaks
+#pragma warning(disable : 6384) // ientity2_class_h_schema_gen.cpp(76): warning C6384: Dividing sizeof a pointer by another value
+
+// For temporarily suppressing warnings -- the warnings are suppressed for the next source line.
+#define ANALYZE_SUPPRESS(wnum) __pragma(warning(suppress: wnum))
+#define ANALYZE_SUPPRESS2(wnum1, wnum2) __pragma(warning(supress: wnum1  wnum2))
+#define ANALYZE_SUPPRESS3(wnum1, wnum2, wnum3) __pragma(warning(suppress: wnum1 wnum2 wnum3))
+#define ANALYZE_SUPPRESS4(wnum1, wnum2, wnum3, wnum4) __pragma(warning(suppress: wnum1 wnum2 wnum3 wnum4))
+
+// Tag all printf style format strings with this
+#define PRINTF_FORMAT_STRING _Printf_format_string_
+#define SCANF_FORMAT_STRING _Scanf_format_string_impl_
+// Various macros for specifying the capacity of the buffer pointed
+// to by a function parameter. Variations include in/out/inout,
+// CAP (elements) versus BYTECAP (bytes), and null termination or
+// not (_Z).
+#define IN_Z _In_z_
+#define IN_CAP(x) _In_count_(x)
+#define IN_BYTECAP(x) _In_bytecount_(x)
+#define OUT_Z_CAP(x) _Out_z_cap_(x)
+#define OUT_CAP(x) _Out_cap_(x)
+#define OUT_BYTECAP(x) _Out_bytecap_(x)
+#define OUT_Z_BYTECAP(x) _Out_z_bytecap_(x)
+#define INOUT_BYTECAP(x) _Inout_bytecap_(x)
+#define INOUT_Z_CAP(x) _Inout_z_cap_(x)
+#define INOUT_Z_BYTECAP(x) _Inout_z_bytecap_(x)
+// These macros are use for annotating array reference parameters, typically used in functions
+// such as V_strcpy_safe. Because they are array references the capacity is already known.
+#if _MSC_VER >= 1700
+#define IN_Z_ARRAY _Pre_z_
+#define OUT_Z_ARRAY _Post_z_
+#define INOUT_Z_ARRAY _Prepost_z_
+#else
+#define IN_Z_ARRAY _Deref_pre_z_
+#define OUT_Z_ARRAY _Deref_post_z_
+#define INOUT_Z_ARRAY _Deref_prepost_z_
+#endif // _MSC_VER >= 1700
+// Use the macros above to annotate string functions that fill buffers as shown here,
+// in order to give VS's /analyze more opportunities to find bugs.
+// void V_wcsncpy( OUT_Z_BYTECAP(maxLenInBytes) wchar_t *pDest, wchar_t const *pSrc, int maxLenInBytes );
+// int V_snwprintf( OUT_Z_CAP(maxLenInCharacters) wchar_t *pDest, int maxLenInCharacters, PRINTF_FORMAT_STRING const wchar_t *pFormat, ... );
+
+#endif // _PREFAST_
+#endif // _MSC_VER >= 1600 // VS 2010 and above.
+
+#ifndef ANALYZE_SUPPRESS
+#define ANALYZE_SUPPRESS(wnum)
+#define ANALYZE_SUPPRESS2(wnum1, wnum2)
+#define ANALYZE_SUPPRESS3(wnum1, wnum2, wnum3)
+#define ANALYZE_SUPPRESS4(wnum1, wnum2, wnum3, wnum4)
+#define PRINTF_FORMAT_STRING
+#define SCANF_FORMAT_STRING
+#define IN_Z
+#define IN_CAP(x)
+#define IN_BYTECAP(x)
+#define OUT_Z_CAP(x)
+#define OUT_CAP(x)
+#define OUT_BYTECAP(x)
+#define OUT_Z_BYTECAP(x)
+#define INOUT_BYTECAP(x)
+#define INOUT_Z_CAP(x)
+#define INOUT_Z_BYTECAP(x)
+#define OUT_Z_ARRAY
+#define INOUT_Z_ARRAY
+#endif
+
+#endif // ANALYSIS_ANNOTATIONS_H