Squashing file write bugs

compiler.h

@@ -235,14 +235,13 @@ parse_init(Parse_Ctx *ctx, Allocator *perm_allocator, Allocator *heap_allocator)
   pctx                      = ctx;
   ctx->perm                 = perm_allocator;
   ctx->heap                 = heap_allocator;
-  ctx->gen                  = {ctx->perm};
+  ctx->gen                  = {ctx->heap};
   ctx->ordered_decls        = {ctx->heap};
   ctx->type_map             = {ctx->heap};
   ctx->modules              = {ctx->heap};
   bigint_allocator          = ctx->perm;
 
   lex_init(ctx->perm, ctx->heap, ctx);
-
   ctx->builtins = ast_module(ctx->intern("builtins"_s));
   insert_builtin_types_into_scope((Ast_Scope *)ctx->builtins);