Provide new llvm::sys::Program facilities for converting the stdout and
stdin to binary mode. There is no standard way to do this and the available
mechanisms are platform specific. Adjust the bytecode reader and writer to
use these methods when their input is stdin or output is stdout. THis avoids
the problem with \n writing CRLF to a bytecode file on windows.

Patch Contributed by Michael Smith.

llvm-svn: 28722

llvm-svn: 22353

llvm-svn: 21704

llvm-svn: 21216

llvm-svn: 20256

llvm-svn: 20255

llvm-svn: 20208

gdb debugger doesn't get confused on which file it is reading (the one in
lib/System or the one in lib/System/{Win32,Unix})

llvm-svn: 19426

llvm-svn: 19057

llvm-svn: 18930

Implement the new environment pointer for ExecuteAndWait

llvm-svn: 18928

llvm-svn: 18802

llvm-svn: 17896

Patch contributed by Jeff Cohen.

llvm-svn: 17891

llvm-svn: 17498

Patches submitted by Jeff Cohen. Thanks Jeff!

llvm-svn: 16362

"Program" operating system concept (find and execute programs).

llvm-svn: 16084

note individually but these essence of it is to not derive from
std::string, clarify the interface, and provide better documentation.
There is now also (untested) implementations for AIX, Darwin, and SunOS.

llvm-svn: 16078

llvm-svn: 16048