Fix expected error message

testing/select.test

@@ -979,34 +979,34 @@ do_execsql_test_on_specific_db {:memory:} limit-expr-int-and-string {
 
 do_execsql_test_in_memory_error_content  limit-expr-cannot-be-cast-losslessly-1 {
   SELECT 1 LIMIT 1.1;
-} {"the value in register cannot be cast to integer"}
+} {"datatype mismatch"}
 
 do_execsql_test_in_memory_error_content  limit-expr-cannot-be-cast-losslessly-2 {
   SELECT 1 LIMIT 1.1 + 2.2 + 1.9/8;
-} {"the value in register cannot be cast to integer"}
+} {"datatype mismatch"}
 
 # Return error as float in the expression cannot be cast losslessly
 do_execsql_test_in_memory_error_content limit-expr-cannot-be-cast-losslessly-3 {
   SELECT 1 LIMIT 1.1 +'a';
-} {"the value in register cannot be cast to integer"}
+} {"datatype mismatch"}
 
 do_execsql_test_in_memory_error_content limit-expr-invalid-data-type-1 {
   SELECT 1 LIMIT 'a';
-} {"the value in register cannot be cast to integer"}
+} {"datatype mismatch"}
 
 do_execsql_test_in_memory_error_content limit-expr-invalid-data-type-2 {
   SELECT 1 LIMIT NULL;
-} {"the value in register cannot be cast to integer"}
+} {"datatype mismatch"}
 
 # The expression below evaluates to NULL as string is cast to 0
 do_execsql_test_in_memory_error_content limit-expr-invalid-data-type-3 {
   SELECT 1 LIMIT 1/'iwillbezero ;-; ' ;
-} {"the value in register cannot be cast to integer"}
+} {"datatype mismatch"}
 
 # Expression is evaluated as NULL
 do_execsql_test_in_memory_error_content limit-expr-invalid-data-type-4 { 
   SELECT 1 LIMIT 4+NULL;
-} {"the value in register cannot be cast to integer"}
+} {"datatype mismatch"}
 
 do_execsql_test_on_specific_db {:memory:} rowid-references {
   CREATE TABLE test_table (id INTEGER);