Fix #3630 (first part)

src/check_expr.cpp

@@ -1805,7 +1805,7 @@ gb_internal Entity *check_ident(CheckerContext *c, Operand *o, Ast *n, Type *nam
 
 	case Entity_ImportName:
 		if (!allow_import_name) {
-			error(n, "Use of import '%.*s' not in selector", LIT(name));
+			error(n, "Use of import name '%.*s' not in the form of 'x.y'", LIT(name));
 		}
 		return e;
 	case Entity_LibraryName:

src/check_type.cpp

@@ -1595,7 +1595,7 @@ gb_internal bool is_expr_from_a_parameter(CheckerContext *ctx, Ast *expr) {
 		return is_expr_from_a_parameter(ctx, lhs);
 	} else if (expr->kind == Ast_Ident) {
 		Operand x= {};
-		Entity *e = check_ident(ctx, &x, expr, nullptr, nullptr, false);
+		Entity *e = check_ident(ctx, &x, expr, nullptr, nullptr, true);
 		if (e->flags & EntityFlag_Param) {
 			return true;
 		}