Fix #7093
Fix #7093

This is an assert due to how STRESS_64RSLT_MUL is implemented. This
stress mode converts:
```
/--*  lclVar    int    V01 loc0
*  *         int
\--*  lclVar    int    V01 loc0
```
to:
```
*  cast      int <- long
|  /--*  cast      long <- int
|  |  \--*  lclVar    int    V01 loc0
\--*  *         long
   \--*  cast      long <- long
      \--*  nop       long
         \--*  lclVar    int    V01 loc0
```
Thus, the long 'nop' node is above an 'int' operand node. This led to an assert
in genCodeForTreeLng() that the lclVar was type long, which is isn't.

I added yet another cast under the 'nop' to fix this typing problem:
```
*  cast      int <- long
|  /--*  cast      long <- int
|  |  \--*  lclVar    int    V01 loc0
\--*  *         long
   \--*  cast      long <- long
      \--*  nop       long
         \--*  cast      long <- int
            \--*  lclVar    int    V01 loc0
```

cmckinsey/coreclr,ramarag/coreclr,bartdesmet/coreclr,jamesqo/coreclr,Dmitry-Me/coreclr,ragmani/coreclr,russellhadley/coreclr,yeaicc/coreclr,rartemev/coreclr,cmckinsey/coreclr,ruben-ayrapetyan/coreclr,YongseopKim/coreclr,alexperovich/coreclr,AlexGhiondea/coreclr,JonHanna/coreclr,James-Ko/coreclr,cydhaselton/coreclr,rartemev/coreclr,botaberg/coreclr,JosephTremoulet/coreclr,JonHanna/coreclr,pgavlin/coreclr,JosephTremoulet/coreclr,cshung/coreclr,cshung/coreclr,dpodder/coreclr,yeaicc/coreclr,cydhaselton/coreclr,alexperovich/coreclr,mskvortsov/coreclr,bartdesmet/coreclr,JosephTremoulet/coreclr,bartdesmet/coreclr,AlexGhiondea/coreclr,hseok-oh/coreclr,hseok-oh/coreclr,alexperovich/coreclr,jamesqo/coreclr,parjong/coreclr,mskvortsov/coreclr,YongseopKim/coreclr,yizhang82/coreclr,russellhadley/coreclr,ramarag/coreclr,cshung/coreclr,JosephTremoulet/coreclr,qiudesong/coreclr,yizhang82/coreclr,sjsinju/coreclr,poizan42/coreclr,russellhadley/coreclr,yizhang82/coreclr,bartdesmet/coreclr,poizan42/coreclr,krytarowski/coreclr,gkhanna79/coreclr,krk/coreclr,tijoytom/coreclr,jamesqo/coreclr,James-Ko/coreclr,ragmani/coreclr,dasMulli/coreclr,neurospeech/coreclr,JonHanna/coreclr,qiudesong/coreclr,dpodder/coreclr,pgavlin/coreclr,pgavlin/coreclr,kyulee1/coreclr,Dmitry-Me/coreclr,russellhadley/coreclr,parjong/coreclr,mmitche/coreclr,wtgodbe/coreclr,YongseopKim/coreclr,tijoytom/coreclr,wtgodbe/coreclr,mmitche/coreclr,James-Ko/coreclr,kyulee1/coreclr,botaberg/coreclr,gkhanna79/coreclr,ruben-ayrapetyan/coreclr,ruben-ayrapetyan/coreclr,botaberg/coreclr,cshung/coreclr,Dmitry-Me/coreclr,yizhang82/coreclr,russellhadley/coreclr,parjong/coreclr,AlexGhiondea/coreclr,qiudesong/coreclr,krk/coreclr,poizan42/coreclr,neurospeech/coreclr,JosephTremoulet/coreclr,krk/coreclr,wateret/coreclr,ramarag/coreclr,dpodder/coreclr,rartemev/coreclr,rartemev/coreclr,cydhaselton/coreclr,hseok-oh/coreclr,ramarag/coreclr,wateret/coreclr,alexperovich/coreclr,Dmitry-Me/coreclr,ramarag/coreclr,sagood/coreclr,James-Ko/coreclr,jamesqo/coreclr,cydhaselton/coreclr,rartemev/coreclr,ragmani/coreclr,gkhanna79/coreclr,botaberg/coreclr,ramarag/coreclr,qiudesong/coreclr,poizan42/coreclr,hseok-oh/coreclr,pgavlin/coreclr,YongseopKim/coreclr,James-Ko/coreclr,mmitche/coreclr,wateret/coreclr,wateret/coreclr,cmckinsey/coreclr,dasMulli/coreclr,JosephTremoulet/coreclr,kyulee1/coreclr,dasMulli/coreclr,wtgodbe/coreclr,sjsinju/coreclr,wtgodbe/coreclr,alexperovich/coreclr,cmckinsey/coreclr,neurospeech/coreclr,ramarag/coreclr,parjong/coreclr,rartemev/coreclr,krytarowski/coreclr,tijoytom/coreclr,AlexGhiondea/coreclr,russellhadley/coreclr,James-Ko/coreclr,Dmitry-Me/coreclr,neurospeech/coreclr,cshung/coreclr,krk/coreclr,jamesqo/coreclr,tijoytom/coreclr,jamesqo/coreclr,ragmani/coreclr,alexperovich/coreclr,wtgodbe/coreclr,cydhaselton/coreclr,cydhaselton/coreclr,dpodder/coreclr,tijoytom/coreclr,kyulee1/coreclr,ruben-ayrapetyan/coreclr,botaberg/coreclr,Dmitry-Me/coreclr,poizan42/coreclr,krytarowski/coreclr,parjong/coreclr,krk/coreclr,JonHanna/coreclr,yeaicc/coreclr,sjsinju/coreclr,kyulee1/coreclr,JonHanna/coreclr,ruben-ayrapetyan/coreclr,gkhanna79/coreclr,mskvortsov/coreclr,neurospeech/coreclr,dasMulli/coreclr,dasMulli/coreclr,parjong/coreclr,yeaicc/coreclr,dpodder/coreclr,dpodder/coreclr,AlexGhiondea/coreclr,botaberg/coreclr,krytarowski/coreclr,wateret/coreclr,bartdesmet/coreclr,sjsinju/coreclr,hseok-oh/coreclr,gkhanna79/coreclr,mskvortsov/coreclr,dasMulli/coreclr,sagood/coreclr,ragmani/coreclr,krytarowski/coreclr,mmitche/coreclr,cmckinsey/coreclr,wtgodbe/coreclr,kyulee1/coreclr,sagood/coreclr,mmitche/coreclr,sjsinju/coreclr,gkhanna79/coreclr,cmckinsey/coreclr,yizhang82/coreclr,sagood/coreclr,krytarowski/coreclr,tijoytom/coreclr,yeaicc/coreclr,ragmani/coreclr,cshung/coreclr,qiudesong/coreclr,bartdesmet/coreclr,hseok-oh/coreclr,cmckinsey/coreclr,dasMulli/coreclr,YongseopKim/coreclr,Dmitry-Me/coreclr,YongseopKim/coreclr,yizhang82/coreclr,pgavlin/coreclr,mmitche/coreclr,mskvortsov/coreclr,sjsinju/coreclr,bartdesmet/coreclr,qiudesong/coreclr,yeaicc/coreclr,wateret/coreclr,AlexGhiondea/coreclr,sagood/coreclr,JonHanna/coreclr,ruben-ayrapetyan/coreclr,poizan42/coreclr,neurospeech/coreclr,pgavlin/coreclr,mskvortsov/coreclr,yeaicc/coreclr,krk/coreclr,sagood/coreclr