Add IWYU private pragmas to internal headers.
diff --git a/Eigen/src/Core/arch/GPU/Complex.h b/Eigen/src/Core/arch/GPU/Complex.h
index 4e4cdd1..8a7869c 100644
--- a/Eigen/src/Core/arch/GPU/Complex.h
+++ b/Eigen/src/Core/arch/GPU/Complex.h
@@ -54,6 +54,7 @@
using Eigen::complex_operator_detail::operator==; \
using Eigen::complex_operator_detail::operator!=;
+// IWYU pragma: private
#include "../../InternalHeaderCheck.h"
namespace Eigen {
diff --git a/Eigen/src/Core/arch/GPU/MathFunctions.h b/Eigen/src/Core/arch/GPU/MathFunctions.h
index ad61e95..f8191db 100644
--- a/Eigen/src/Core/arch/GPU/MathFunctions.h
+++ b/Eigen/src/Core/arch/GPU/MathFunctions.h
@@ -10,6 +10,7 @@
#ifndef EIGEN_MATH_FUNCTIONS_GPU_H
#define EIGEN_MATH_FUNCTIONS_GPU_H
+// IWYU pragma: private
#include "../../InternalHeaderCheck.h"
namespace Eigen {
diff --git a/Eigen/src/Core/arch/GPU/PacketMath.h b/Eigen/src/Core/arch/GPU/PacketMath.h
index a04c563..5c959ed 100644
--- a/Eigen/src/Core/arch/GPU/PacketMath.h
+++ b/Eigen/src/Core/arch/GPU/PacketMath.h
@@ -10,6 +10,7 @@
#ifndef EIGEN_PACKET_MATH_GPU_H
#define EIGEN_PACKET_MATH_GPU_H
+// IWYU pragma: private
#include "../../InternalHeaderCheck.h"
namespace Eigen {
diff --git a/Eigen/src/Core/arch/GPU/TypeCasting.h b/Eigen/src/Core/arch/GPU/TypeCasting.h
index 6e8ba27..aa89cd2 100644
--- a/Eigen/src/Core/arch/GPU/TypeCasting.h
+++ b/Eigen/src/Core/arch/GPU/TypeCasting.h
@@ -10,6 +10,7 @@
#ifndef EIGEN_TYPE_CASTING_GPU_H
#define EIGEN_TYPE_CASTING_GPU_H
+// IWYU pragma: private
#include "../../InternalHeaderCheck.h"
namespace Eigen {
