Rollup merge of #127712 - ChrisDenton:raw-types, r=workingjubilee

Windows: Remove some unnecessary type aliases

Back in the olden days, C did not have fixed-width types so these type aliases were at least potentially useful. Nowadays, and especially in Rust, we don't need the aliases and they don't help with anything. Notably the windows bindings we use also don't bother with the aliases. And even when we have used aliases they're often only used once then forgotten about.

The only one that gives me pause is `DWORD` because it's used a fair bit. But it's still used inconsistently and we implicitly assume it's a `u32` anyway (e.g. `as` casting from an `i32`).

Author: workingjubilee

tests/fail/alloc/global_system_mixup.rs

@@ -4,7 +4,7 @@
 
 //@normalize-stderr-test: "using [A-Za-z]+ heap deallocation operation" -> "using PLATFORM heap deallocation operation"
 //@normalize-stderr-test: "\| +\^+" -> "| ^"
-//@normalize-stderr-test: "libc::free\([^()]*\)|unsafe \{ HeapFree\([^()]*\) \};" -> "FREE();"
+//@normalize-stderr-test: "libc::free\([^()]*\)|unsafe \{ HeapFree\([^}]*\};" -> "FREE();"
 
 #![feature(allocator_api, slice_ptr_get)]