[test] Use platform pointer size in type reflection test

Author: aaronj0

unittests/CppInterOp/TypeReflectionTest.cpp

@@ -74,7 +74,8 @@ TEST(TypeReflectionTest, GetSizeOfType) {
   EXPECT_EQ(Cpp::GetSizeOfType(Cpp::GetVariableType(Decls[3])), 8);
   EXPECT_EQ(Cpp::GetSizeOfType(Cpp::GetVariableType(Decls[4])), 16);
   EXPECT_EQ(Cpp::GetSizeOfType(Cpp::GetTypeFromScope(Decls[5])), 0);
-  EXPECT_EQ(Cpp::GetSizeOfType(Cpp::GetVariableType(Decls[6])), 8);
+  EXPECT_EQ(Cpp::GetSizeOfType(Cpp::GetVariableType(Decls[6])),
+            sizeof(intptr_t));
 }
 
 TEST(TypeReflectionTest, GetCanonicalType) {

unittests/CppInterOp/Utils.cpp

@@ -13,6 +13,7 @@
 #include "clang/Sema/Sema.h"
 
 #include <algorithm>
+#include <cstdint>
 #include <string>
 
 using namespace clang;