Fix #23166. Get the Compiler Plugins example compiling again.
Fix #23166. Get the Compiler Plugins example compiling again.

 * "let met text" was previously of &String type.  Now it is of &str type.

 * Update the slicing syntax.  Both &text[] and text.slice_from() evaluate
   to a &str.

 * We were passing a u32 to expr_usize.  Call expr_u32 instead.

aneeshusa/rust,rohitjoshi/rust,pshc/rust,rprichard/rust,jashank/rust,robertg/rust,zaeleus/rust,nwin/rust,cllns/rust,carols10cents/rust,andars/rust,vhbit/rust,mvdnes/rust,ejjeong/rust,seanrivera/rust,ejjeong/rust,mdinger/rust,aneeshusa/rust,mdinger/rust,mvdnes/rust,TheNeikos/rust,zaeleus/rust,TheNeikos/rust,l0kod/rust,gifnksm/rust,zubron/rust,philyoon/rust,mdinger/rust,mihneadb/rust,ebfull/rust,ruud-v-a/rust,AerialX/rust-rt-minimal,pelmers/rust,victorvde/rust,sae-bom/rust,zachwick/rust,aidancully/rust,omasanori/rust,nwin/rust,krzysz00/rust,aepsil0n/rust,AerialX/rust,mihneadb/rust,avdi/rust,TheNeikos/rust,XMPPwocky/rust,miniupnp/rust,pshc/rust,zachwick/rust,mvdnes/rust,jashank/rust,gifnksm/rust,l0kod/rust,krzysz00/rust,dwillmer/rust,seanrivera/rust,rohitjoshi/rust,reem/rust,vhbit/rust,omasanori/rust,zachwick/rust,philyoon/rust,pshc/rust,rprichard/rust,dwillmer/rust,miniupnp/rust,philyoon/rust,victorvde/rust,robertg/rust,pelmers/rust,dwillmer/rust,cllns/rust,mahkoh/rust,jroesch/rust,KokaKiwi/rust,victorvde/rust,jroesch/rust,jroesch/rust,zaeleus/rust,pshc/rust,mihneadb/rust,l0kod/rust,jashank/rust,andars/rust,zachwick/rust,avdi/rust,krzysz00/rust,l0kod/rust,l0kod/rust,GBGamer/rust,kwantam/rust,cllns/rust,pelmers/rust,kwantam/rust,zubron/rust,ruud-v-a/rust,zaeleus/rust,aneeshusa/rust,pelmers/rust,reem/rust,seanrivera/rust,avdi/rust,aepsil0n/rust,omasanori/rust,mahkoh/rust,seanrivera/rust,zachwick/rust,aidancully/rust,mahkoh/rust,cllns/rust,rprichard/rust,GBGamer/rust,andars/rust,dwillmer/rust,mvdnes/rust,carols10cents/rust,avdi/rust,rprichard/rust,ejjeong/rust,ebfull/rust,reem/rust,ruud-v-a/rust,GBGamer/rust,vhbit/rust,avdi/rust,jroesch/rust,ejjeong/rust,miniupnp/rust,philyoon/rust,graydon/rust,jashank/rust,mihneadb/rust,AerialX/rust-rt-minimal,GBGamer/rust,pshc/rust,AerialX/rust-rt-minimal,avdi/rust,dwillmer/rust,aepsil0n/rust,AerialX/rust-rt-minimal,AerialX/rust-rt-minimal,zubron/rust,andars/rust,robertg/rust,zubron/rust,kwantam/rust,mvdnes/rust,kwantam/rust,graydon/rust,KokaKiwi/rust,rohitjoshi/rust,victorvde/rust,jroesch/rust,mdinger/rust,aidancully/rust,ebfull/rust,sae-bom/rust,gifnksm/rust,nwin/rust,dwillmer/rust,andars/rust,dwillmer/rust,reem/rust,rohitjoshi/rust,sae-bom/rust,andars/rust,zaeleus/rust,KokaKiwi/rust,nwin/rust,sae-bom/rust,cllns/rust,aneeshusa/rust,pelmers/rust,seanrivera/rust,mihneadb/rust,AerialX/rust,zubron/rust,carols10cents/rust,gifnksm/rust,mvdnes/rust,graydon/rust,miniupnp/rust,zubron/rust,miniupnp/rust,gifnksm/rust,pshc/rust,graydon/rust,TheNeikos/rust,zachwick/rust,nwin/rust,aidancully/rust,GBGamer/rust,nwin/rust,dwillmer/rust,seanrivera/rust,XMPPwocky/rust,ebfull/rust,zaeleus/rust,AerialX/rust,KokaKiwi/rust,carols10cents/rust,TheNeikos/rust,victorvde/rust,ruud-v-a/rust,l0kod/rust,AerialX/rust,GBGamer/rust,miniupnp/rust,sae-bom/rust,vhbit/rust,krzysz00/rust,graydon/rust,GBGamer/rust,jashank/rust,jroesch/rust,omasanori/rust,cllns/rust,victorvde/rust,ruud-v-a/rust,vhbit/rust,mihneadb/rust,l0kod/rust,graydon/rust,ejjeong/rust,vhbit/rust,gifnksm/rust,carols10cents/rust,robertg/rust,robertg/rust,philyoon/rust,krzysz00/rust,rohitjoshi/rust,zubron/rust,aepsil0n/rust,mahkoh/rust,aidancully/rust,miniupnp/rust,jashank/rust,jroesch/rust,pshc/rust,jroesch/rust,miniupnp/rust,nwin/rust,robertg/rust,carols10cents/rust,mdinger/rust,pelmers/rust,vhbit/rust,jashank/rust,GBGamer/rust,reem/rust,philyoon/rust,nwin/rust,aidancully/rust,rprichard/rust,ruud-v-a/rust,ebfull/rust,kwantam/rust,vhbit/rust,KokaKiwi/rust,XMPPwocky/rust,aneeshusa/rust,mahkoh/rust,reem/rust,mahkoh/rust,mdinger/rust,KokaKiwi/rust,rohitjoshi/rust,XMPPwocky/rust,omasanori/rust,kwantam/rust,aneeshusa/rust,AerialX/rust-rt-minimal,ejjeong/rust,l0kod/rust,aepsil0n/rust,zubron/rust,jashank/rust,XMPPwocky/rust,omasanori/rust,rprichard/rust,AerialX/rust,XMPPwocky/rust,aepsil0n/rust,sae-bom/rust,krzysz00/rust,pshc/rust,ebfull/rust,TheNeikos/rust,AerialX/rust