Fix type checking for invalid enum backing type

src/check_type.cpp

@@ -790,6 +790,9 @@ gb_internal void check_enum_type(CheckerContext *ctx, Type *enum_type, Type *nam
 	ast_node(et, EnumType, node);
 	GB_ASSERT(is_type_enum(enum_type));
 
+	enum_type->Enum.base_type = t_int;
+	enum_type->Enum.scope = ctx->scope;
+
 	Type *base_type = t_int;
 	if (et->base_type != nullptr) {
 		base_type = check_type(ctx, et->base_type);
@@ -811,7 +814,6 @@ gb_internal void check_enum_type(CheckerContext *ctx, Type *enum_type, Type *nam
 
 	// NOTE(bill): Must be up here for the 'check_init_constant' system
 	enum_type->Enum.base_type = base_type;
-	enum_type->Enum.scope = ctx->scope;
 
 	auto fields = array_make<Entity *>(permanent_allocator(), 0, et->fields.count);
 

src/types.cpp

@@ -768,6 +768,7 @@ gb_internal i64      type_offset_of (Type *t, i64 index, Type **field_type_=null
 gb_internal gbString type_to_string (Type *type, bool shorthand=true);
 gb_internal gbString type_to_string (Type *type, gbAllocator allocator, bool shorthand=true);
 gb_internal i64      type_size_of_internal(Type *t, TypePath *path);
+gb_internal i64     type_align_of_internal(Type *t, TypePath *path);
 gb_internal void     init_map_internal_types(Type *type);
 gb_internal Type *   bit_set_to_int(Type *t);
 gb_internal bool     are_types_identical(Type *x, Type *y);
@@ -780,9 +781,6 @@ gb_internal bool  is_type_slice(Type *t);
 gb_internal bool  is_type_integer(Type *t);
 gb_internal bool  type_set_offsets(Type *t);
 
-gb_internal i64 type_size_of_internal(Type *t, TypePath *path);
-gb_internal i64 type_align_of_internal(Type *t, TypePath *path);
-
 
 // IMPORTANT TODO(bill): SHould this TypePath code be removed since type cycle checking is handled much earlier on?
 
@@ -3576,8 +3574,6 @@ gb_internal Slice<i32> struct_fields_index_by_increasing_offset(gbAllocator allo
 
 
 
-gb_internal i64 type_size_of_internal (Type *t, TypePath *path);
-gb_internal i64 type_align_of_internal(Type *t, TypePath *path);
 gb_internal i64 type_size_of(Type *t);
 gb_internal i64 type_align_of(Type *t);