clang/gcc: Use STL hash function for int64_t and uint64_t
clang/gcc: Use STL hash function for int64_t and uint64_t

This patch changes the guards for the definition of hash functions to
also exclude the int64_t and uint64_t hash functions in the case we
are using the c++0x STL <unordered_map> (and <hash>) or the TR1
version of the same header. Previously the guard only covered the hash
function for strings, but it seems there is also no need to define a
hash for the 64-bit integer types, and this has caused problems with
builds on 32-bit Ubuntu.

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