s/Intrin.h/intrin.h/, trying to fix the build after r272701

llvm-svn: 272702
diff --git a/clang/lib/Headers/CMakeLists.txt b/clang/lib/Headers/CMakeLists.txt
index f2c8fb8..2eedb33 100644
--- a/clang/lib/Headers/CMakeLists.txt
+++ b/clang/lib/Headers/CMakeLists.txt
@@ -37,7 +37,7 @@
   htmxlintrin.h
   ia32intrin.h
   immintrin.h
-  Intrin.h
+  intrin.h
   inttypes.h
   iso646.h
   limits.h
diff --git a/clang/lib/Headers/intrin.h b/clang/lib/Headers/intrin.h
index f153179..3033fae 100644
--- a/clang/lib/Headers/intrin.h
+++ b/clang/lib/Headers/intrin.h
@@ -1,4 +1,4 @@
-/* ===-------- Intrin.h ---------------------------------------------------===
+/* ===-------- intrin.h ---------------------------------------------------===
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -23,7 +23,7 @@
 
 /* Only include this if we're compiling for the windows platform. */
 #ifndef _MSC_VER
-#include_next <Intrin.h>
+#include_next <intrin.h>
 #else
 
 #ifndef __INTRIN_H
diff --git a/clang/test/CodeGen/ms-intrinsics.c b/clang/test/CodeGen/ms-intrinsics.c
index d05adfd..ceaa847 100644
--- a/clang/test/CodeGen/ms-intrinsics.c
+++ b/clang/test/CodeGen/ms-intrinsics.c
@@ -8,11 +8,11 @@
 // RUN:         -triple x86_64--windows -Oz -emit-llvm %s -o - \
 // RUN:         | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-X64
 
-// Intrin.h needs size_t, but -ffreestanding prevents us from getting it from
+// intrin.h needs size_t, but -ffreestanding prevents us from getting it from
 // stddef.h.  Work around it with this typedef.
 typedef __SIZE_TYPE__ size_t;
 
-#include <Intrin.h>
+#include <intrin.h>
 
 void *test_InterlockedExchangePointer(void * volatile *Target, void *Value) {
   return _InterlockedExchangePointer(Target, Value);
diff --git a/clang/test/CodeGen/ms-mm-align.c b/clang/test/CodeGen/ms-mm-align.c
index 49feddd..7130c74 100644
--- a/clang/test/CodeGen/ms-mm-align.c
+++ b/clang/test/CodeGen/ms-mm-align.c
@@ -2,10 +2,10 @@
 // RUN:         -triple i686--windows -emit-llvm %s -o - \
 // RUN:         | FileCheck %s -check-prefix CHECK
 
-// Intrin.h needs size_t, but -ffreestanding prevents us from getting it from
+// intrin.h needs size_t, but -ffreestanding prevents us from getting it from
 // stddef.h.  Work around it with this typedef.
 typedef __SIZE_TYPE__ size_t;
-#include <Intrin.h>
+#include <intrin.h>
 
 void capture_ptr(int* i);
 void test_mm_align16(int p) {
diff --git a/clang/test/Headers/ms-intrin.cpp b/clang/test/Headers/ms-intrin.cpp
index 9356d21..c697428 100644
--- a/clang/test/Headers/ms-intrin.cpp
+++ b/clang/test/Headers/ms-intrin.cpp
@@ -20,11 +20,11 @@
 
 // REQUIRES: x86-registered-target
 
-// Intrin.h needs size_t, but -ffreestanding prevents us from getting it from
+// intrin.h needs size_t, but -ffreestanding prevents us from getting it from
 // stddef.h.  Work around it with this typedef.
 typedef __SIZE_TYPE__ size_t;
 
-#include <Intrin.h>
+#include <intrin.h>
 
 // Use some C++ to make sure we closed the extern "C" brackets.
 template <typename T>