Fix build errors in HLSLExec tests

- Add missing #include <windows.h> in HLSLTestDataTypes.h before
  HlslTestUtils.h to resolve LPCSTR/LPCWSTR undeclared errors
- Define D3D_SHADER_MODEL_6_10 (0x6a) in LinearAlgebra.cpp since
  the Windows SDK only defines up to 6.9
- Rename ValidationConfig member to Validation in all
  TrigonometricValidation structs in LongVectors.cpp to match the
  renamed member in DefaultValidation/StrictValidation

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: alsepkow

tools/clang/unittests/HLSLExec/HLSLTestDataTypes.h

@@ -7,6 +7,8 @@
 #include <ostream>
 #include <type_traits>
 
+#include <windows.h>
+
 #include <DirectXMath.h>
 #include <DirectXPackedVector.h>
 

tools/clang/unittests/HLSLExec/LongVectors.cpp

@@ -799,28 +799,28 @@ CAST_OP(OpType::CastToFloat64, double, (CastToFloat64(A)));
 // https://microsoft.github.io/DirectX-Specs/d3d/archive/D3D11_3_FunctionalSpec.htm#22.10.20
 
 template <typename T, OpType OP> struct TrigonometricValidation {
-  ValidationConfig ValidationConfig = ValidationConfig::Epsilon(0.0008f);
+  ValidationConfig Validation = ValidationConfig::Epsilon(0.0008f);
 };
 
 // Half precision trig functions have a larger tolerance due to their lower
 // precision. Note that the D3D spec
 // does not mention half precision trig functions.
 template <OpType OP> struct TrigonometricValidation<HLSLHalf_t, OP> {
-  ValidationConfig ValidationConfig = ValidationConfig::Epsilon(0.003f);
+  ValidationConfig Validation = ValidationConfig::Epsilon(0.003f);
 };
 
 // For the half precision trig functions with an infinite range in either
 // direction we use 2 ULPs of tolerance instead.
 template <> struct TrigonometricValidation<HLSLHalf_t, OpType::Cosh> {
-  ValidationConfig ValidationConfig = ValidationConfig::Ulp(2.0f);
+  ValidationConfig Validation = ValidationConfig::Ulp(2.0f);
 };
 
 template <> struct TrigonometricValidation<HLSLHalf_t, OpType::Tan> {
-  ValidationConfig ValidationConfig = ValidationConfig::Ulp(2.0f);
+  ValidationConfig Validation = ValidationConfig::Ulp(2.0f);
 };
 
 template <> struct TrigonometricValidation<HLSLHalf_t, OpType::Sinh> {
-  ValidationConfig ValidationConfig = ValidationConfig::Ulp(2.0f);
+  ValidationConfig Validation = ValidationConfig::Ulp(2.0f);
 };
 
 #define TRIG_OP(OP, IMPL)                                                      \