move a bunch of code for initializing the predefines buffer out of Preprocessor.cpp
into clang-cc.cpp.  This makes it so clang-cc constructs the *entire* predefines 
buffer, not just half of it.  A bonus of this is that we get to kill a copy
of DefineBuiltinMacro.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68830 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed