[driver] Allow the driver to directly accept the -no-implicit-float option, so that the
generation of implicit floating point instructions can be disable for ARM. 
rdar://11409142


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156942 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed