Forbid comparisons with alloc.ptr, not just allocator.ptr

Author: 190n

test/internal/ban-words.test.ts

@@ -23,6 +23,10 @@ const words: Record<string, { reason: string; limit?: number; regex?: boolean }>
   "allocator.ptr !=": { reason: "The std.mem.Allocator context pointer can be undefined, which makes this comparison undefined behavior", limit: 1 },
   "== allocator.ptr": { reason: "The std.mem.Allocator context pointer can be undefined, which makes this comparison undefined behavior" },
   "!= allocator.ptr": { reason: "The std.mem.Allocator context pointer can be undefined, which makes this comparison undefined behavior" },
+  "alloc.ptr ==": { reason: "The std.mem.Allocator context pointer can be undefined, which makes this comparison undefined behavior" },
+  "alloc.ptr !=": { reason: "The std.mem.Allocator context pointer can be undefined, which makes this comparison undefined behavior" },
+  "== alloc.ptr": { reason: "The std.mem.Allocator context pointer can be undefined, which makes this comparison undefined behavior" },
+  "!= alloc.ptr": { reason: "The std.mem.Allocator context pointer can be undefined, which makes this comparison undefined behavior" },
   [String.raw`: [a-zA-Z0-9_\.\*\?\[\]\(\)]+ = undefined,`]: { reason: "Do not default a struct field to undefined", limit: 251, regex: true },
 };
 const words_keys = [...Object.keys(words)];