types: migrate test-infra to testify for overflow_test.go (#28071)
types: migrate test-infra to testify for overflow_test.go (#28071)

 
ngaut/tidb,kyle-wang/tidb,pingcap/tidb,pingcap/tidb,ngaut/tidb,ngaut/tidb,pingcap/tidb,pingcap/tidb,kyle-wang/tidb,pingcap/tidb,c4pt0r/tidb,kyle-wang/tidb,c4pt0r/tidb,c4pt0r/tidb,c4pt0r/tidb,kyle-wang/tidb,kyle-wang/tidb,coocood/tidb,kyle-wang/tidb,c4pt0r/tidb,ngaut/tidb,coocood/tidb,ngaut/tidb,pingcap/tidb,ngaut/tidb,c4pt0r/tidb