scons: Add warning delete with non-virtual destructor
scons: Add warning delete with non-virtual destructor

This patch enables a warning for deleting derived classes that do not
have a virtual destructor. The patch merely adds additional checks,
and there are currently no cases that had to be fixed.

zlfben/gem5,kaiyuanl/gem5,powerjg/gem5-ci-test,briancoutinho0905/2dsampling,rallylee/gem5,kaiyuanl/gem5,joerocklin/gem5,qizenguf/MLC-STT,KuroeKurose/gem5,HwisooSo/gemV-update,zlfben/gem5,samueldotj/TeeRISC-Simulator,qizenguf/MLC-STT,cancro7/gem5,SanchayanMaity/gem5,qizenguf/MLC-STT,samueldotj/TeeRISC-Simulator,markoshorro/gem5,gem5/gem5,Weil0ng/gem5,SanchayanMaity/gem5,TUD-OS/gem5-dtu,powerjg/gem5-ci-test,kaiyuanl/gem5,markoshorro/gem5,Weil0ng/gem5,gedare/gem5,HwisooSo/gemV-update,zlfben/gem5,TUD-OS/gem5-dtu,yb-kim/gemV,aclifton/cpeg853-gem5,KuroeKurose/gem5,cancro7/gem5,samueldotj/TeeRISC-Simulator,rjschof/gem5,SanchayanMaity/gem5,kaiyuanl/gem5,aclifton/cpeg853-gem5,HwisooSo/gemV-update,aclifton/cpeg853-gem5,sobercoder/gem5,yb-kim/gemV,KuroeKurose/gem5,gem5/gem5,gem5/gem5,austinharris/gem5-riscv,cancro7/gem5,briancoutinho0905/2dsampling,Weil0ng/gem5,briancoutinho0905/2dsampling,KuroeKurose/gem5,rallylee/gem5,HwisooSo/gemV-update,TUD-OS/gem5-dtu,joerocklin/gem5,powerjg/gem5-ci-test,kaiyuanl/gem5,gedare/gem5,sobercoder/gem5,samueldotj/TeeRISC-Simulator,powerjg/gem5-ci-test,KuroeKurose/gem5,zlfben/gem5,qizenguf/MLC-STT,gem5/gem5,aclifton/cpeg853-gem5,gedare/gem5,Weil0ng/gem5,briancoutinho0905/2dsampling,rjschof/gem5,cancro7/gem5,zlfben/gem5,briancoutinho0905/2dsampling,SanchayanMaity/gem5,kaiyuanl/gem5,rjschof/gem5,austinharris/gem5-riscv,joerocklin/gem5,aclifton/cpeg853-gem5,KuroeKurose/gem5,zlfben/gem5,TUD-OS/gem5-dtu,yb-kim/gemV,austinharris/gem5-riscv,sobercoder/gem5,austinharris/gem5-riscv,gem5/gem5,cancro7/gem5,rjschof/gem5,yb-kim/gemV,aclifton/cpeg853-gem5,yb-kim/gemV,austinharris/gem5-riscv,austinharris/gem5-riscv,samueldotj/TeeRISC-Simulator,HwisooSo/gemV-update,joerocklin/gem5,powerjg/gem5-ci-test,rallylee/gem5,gem5/gem5,zlfben/gem5,TUD-OS/gem5-dtu,gedare/gem5,rallylee/gem5,qizenguf/MLC-STT,yb-kim/gemV,samueldotj/TeeRISC-Simulator,yb-kim/gemV,Weil0ng/gem5,SanchayanMaity/gem5,kaiyuanl/gem5,HwisooSo/gemV-update,TUD-OS/gem5-dtu,gedare/gem5,powerjg/gem5-ci-test,Weil0ng/gem5,markoshorro/gem5,Weil0ng/gem5,gem5/gem5,yb-kim/gemV,rjschof/gem5,markoshorro/gem5,SanchayanMaity/gem5,markoshorro/gem5,sobercoder/gem5,sobercoder/gem5,qizenguf/MLC-STT,rjschof/gem5,gedare/gem5,austinharris/gem5-riscv,aclifton/cpeg853-gem5,joerocklin/gem5,powerjg/gem5-ci-test,rallylee/gem5,TUD-OS/gem5-dtu,HwisooSo/gemV-update,markoshorro/gem5,samueldotj/TeeRISC-Simulator,briancoutinho0905/2dsampling,cancro7/gem5,briancoutinho0905/2dsampling,sobercoder/gem5,rallylee/gem5,rallylee/gem5,joerocklin/gem5,sobercoder/gem5,cancro7/gem5,markoshorro/gem5,joerocklin/gem5,qizenguf/MLC-STT,gedare/gem5,joerocklin/gem5,rjschof/gem5,SanchayanMaity/gem5,KuroeKurose/gem5