Replace a lot of warnings with errors; remove deprecated stuff

src/check_builtin.cpp

@@ -1406,7 +1406,7 @@ gb_internal bool check_builtin_procedure_directive(CheckerContext *c, Operand *o
 		}
 		return false;
 	} else if (name == "load_or") {
-		warning(call, "'#load_or' is deprecated in favour of '#load(path) or_else default'");
+		error(call, "'#load_or' has now been removed in favour of '#load(path) or_else default'");
 
 		if (ce->args.count != 2) {
 			if (ce->args.count == 0) {

src/check_decl.cpp

@@ -354,31 +354,7 @@ gb_internal void check_type_decl(CheckerContext *ctx, Entity *e, Ast *init_expr,
 
 	// using decl
 	if (decl->is_using) {
-		warning(init_expr, "'using' an enum declaration is not allowed, prefer using implicit selector expressions e.g. '.A'");
-		#if 1
-		// NOTE(bill): Must be an enum declaration
-		if (te->kind == Ast_EnumType) {
-			Scope *parent = e->scope;
-			if (parent->flags&ScopeFlag_File) {
-				// NOTE(bill): Use package scope
-				parent = parent->parent;
-			}
-
-			Type *t = base_type(e->type);
-			if (t->kind == Type_Enum) {
-				for (Entity *f : t->Enum.fields) {
-					if (f->kind != Entity_Constant) {
-						continue;
-					}
-					String name = f->token.string;
-					if (is_blank_ident(name)) {
-						continue;
-					}
-					add_entity(ctx, parent, nullptr, f);
-				}
-			}
-		}
-		#endif
+		error(init_expr, "'using' an enum declaration is not allowed, prefer using implicit selector expressions e.g. '.A'");
 	}
 }
 

src/check_expr.cpp

@@ -7153,7 +7153,7 @@ gb_internal ExprKind check_call_expr(CheckerContext *c, Operand *operand, Ast *c
 		i32 id = operand->builtin_id;
 		Entity *e = entity_of_node(operand->expr);
 		if (e != nullptr && e->token.string == "expand_to_tuple") {
-			warning(operand->expr, "'expand_to_tuple' has been replaced with 'expand_values'");
+			error(operand->expr, "'expand_to_tuple' has been replaced with 'expand_values'");
 		}
 		if (!check_builtin_procedure(c, operand, call, id, type_hint)) {
 			operand->mode = Addressing_Invalid;

src/checker.cpp

@@ -3085,7 +3085,7 @@ gb_internal DECL_ATTRIBUTE_PROC(proc_decl_attribute) {
 			check_expr(c, &o, value);
 			Entity *e = entity_of_node(o.expr);
 			if (e != nullptr && e->kind == Entity_Procedure) {
-				warning(elem, "'%.*s' is deprecated, please use one of the following instead: 'deferred_none', 'deferred_in', 'deferred_out'", LIT(name));
+				error(elem, "'%.*s' is not allowed any more, please use one of the following instead: 'deferred_none', 'deferred_in', 'deferred_out'", LIT(name));
 				if (ac->deferred_procedure.entity != nullptr) {
 					error(elem, "Previous usage of a 'deferred_*' attribute");
 				}
@@ -4584,7 +4584,7 @@ gb_internal DECL_ATTRIBUTE_PROC(foreign_import_decl_attribute) {
 		if (value != nullptr) {
 			error(elem, "Expected no parameter for '%.*s'", LIT(name));
 		} else if (name == "force") {
-			warning(elem, "'force' is deprecated and is identical to 'require'");
+			error(elem, "'force' was replaced with 'require'");
 		}
 		ac->require_declaration = true;
 		return true;
@@ -6104,7 +6104,7 @@ gb_internal void check_parsed_files(Checker *c) {
 		while (mpsc_dequeue(&c->info.intrinsics_entry_point_usage, &node)) {
 			if (c->info.entry_point == nullptr && node != nullptr) {
 				if (node->file()->pkg->kind != Package_Runtime) {
-					warning(node, "usage of intrinsics.__entry_point will be a no-op");
+					error(node, "usage of intrinsics.__entry_point will be a no-op");
 				}
 			}
 		}

src/main.cpp

@@ -2142,16 +2142,9 @@ gb_internal void print_show_help(String const arg0, String const &command) {
 	}
 
 	if (check) {
-		#if defined(GB_SYSTEM_WINDOWS)
 		print_usage_line(1, "-no-threaded-checker");
 		print_usage_line(2, "Disabled multithreading in the semantic checker stage");
 		print_usage_line(0, "");
-		#else
-		print_usage_line(1, "-threaded-checker");
-		print_usage_line(1, "[EXPERIMENTAL]");
-		print_usage_line(2, "Multithread the semantic checker stage");
-		print_usage_line(0, "");
-		#endif
 	}
 
 	if (check) {

src/tokenizer.cpp

@@ -696,8 +696,8 @@ gb_internal void tokenizer_get_token(Tokenizer *t, Token *token, int repeat=0) {
 			if (entry->kind != Token_Invalid && entry->hash == hash) {
 				if (str_eq(entry->text, token->string)) {
 					token->kind = entry->kind;
-					if (token->kind == Token_not_in && entry->text == "notin") {
-						syntax_warning(*token, "'notin' is deprecated in favour of 'not_in'");
+					if (token->kind == Token_not_in && entry->text.len == 5) {
+						syntax_error(*token, "Did you mean 'not_in'?");
 					}
 				}
 			}