refactor: 💥 framework.h introduced + IWYU

test/runtime/distribution_test.cpp

@@ -22,16 +22,18 @@
 
 #include <catch2/catch_test_macros.hpp>
 #include <array>
+#include <cstddef>
+#include <cstdint>
 #include <initializer_list>
 #include <random>
 #include <vector>
 #ifdef MP_UNITS_MODULES
 import mp_units;
 #else
-#include <mp-units/ostream.h>
+#include <mp-units/ostream.h>  // IWYU pragma: keep
 #include <mp-units/random.h>
-#include <mp-units/systems/si/unit_symbols.h>
-#include <mp-units/systems/si/units.h>
+#include <mp-units/systems/isq/space_and_time.h>
+#include <mp-units/systems/si/si.h>
 #endif