[liblang] Remove DOS line endings in libclang.exports

Undefined                       first referenced
 symbol                             in file
clang_getCompletionFixIt           /var/gcc/llvm/obj/local/tools/clang/tools/libclang/libclang.exports
clang_getTokenLocation             /var/gcc/llvm/obj/local/tools/clang/tools/libclang/libclang.exports
clang_getToken                     /var/gcc/llvm/obj/local/tools/clang/tools/libclang/libclang.exports
clang_getTemplateCursorKind        /var/gcc/llvm/obj/local/tools/clang/tools/libclang/libclang.exports
clang_getTUResourceUsageName       /var/gcc/llvm/obj/local/tools/clang/tools/libclang/libclang.exports
clang_getCompletionChunkKind       /var/gcc/llvm/obj/local/tools/clang/tools/libclang/libclang.exports
clang_getCompletionChunkText       /var/gcc/llvm/obj/local/tools/clang/tools/libclang/libclang.exports
clang_getSpellingLocation          /var/gcc/llvm/obj/local/tools/clang/tools/libclang/libclang.exports
clang_getCompletionParent          /var/gcc/llvm/obj/local/tools/clang/tools/libclang/libclang.exports
clang_getCompletionChunkCompletionString /var/gcc/llvm/obj/local/tools/clang/tools/libclang/libclang.exports
clang_getCompletionPriority        /var/gcc/llvm/obj/local/tools/clang/tools/libclang/libclang.exports
clang_getCompletionNumFixIts       /var/gcc/llvm/obj/local/tools/clang/tools/libclang/libclang.exports
clang_getTokenExtent               /var/gcc/llvm/obj/local/tools/clang/tools/libclang/libclang.exports
clang_getCompletionNumAnnotations  /var/gcc/llvm/obj/local/tools/clang/tools/libclang/libclang.exports
clang_getTokenKind                 /var/gcc/llvm/obj/local/tools/clang/tools/libclang/libclang.exports
ld: fatal: symbol referencing errors
collect2: error: ld returned 1 exit status
make[2]: *** [tools/clang/tools/libclang/CMakeFiles/libclang.dir/build.make:651: lib/libclang.so.7] Error 1

It turns out that this is caused by https://reviews.llvm.org/D46862: it added a
couple of CRs (^M) to some lines.  Solaris ld takes them to be part of the symbol
names, which of course are missing from the input objects.  GNU ld handles this
just fine.  Fixed by removing the CRs.

Bootstrapped on i386-pc-solaris2.11.  I guess this is obvious.

Differential Revision: https://reviews.llvm.org/D48423

llvm-svn: 335234