Make the sys::Path::getFileStatus function more efficient by having it
return a pointer to the FileStatus structure rather than copy it. Adjust
uses of the function accordingly. Also, fix some memory issues in sys::Path.

llvm-svn: 35476

Make the Win32 code exception free (untested/uncompiled) which forced some
interface changes which had ripple effect. This should be the last of 797.

llvm-svn: 29884

llvm-svn: 29443

llvm-svn: 28639

llvm-svn: 22585

llvm-svn: 22582

build will not fail

llvm-svn: 22578

llvm-svn: 22356

llvm-svn: 22353

llvm-svn: 21704

llvm-svn: 20243

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

Patch contributed by Jeff Cohen.

llvm-svn: 17890

Patch provided by Morten Ofstad

llvm-svn: 17826

llvm-svn: 17498

llvm-svn: 16970

llvm-svn: 16617

llvm-svn: 16615

Patch contributed by Jeff Cohen. Thanks Jeff!

llvm-svn: 16564

llvm-svn: 16495

Patch submitted by Jeff Cohen. Thanks Jeff!

llvm-svn: 16401

Add some additional commentary about the workings of this module.

Patch contributed by Jeff Cohen. Thanks Jeff!

llvm-svn: 16383

Patch provided by Jeff Cohen. Thanks Jeff!

llvm-svn: 16380

of "Signals" (cleanup after fatal errors).

llvm-svn: 16085

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