[tools] Change std::sort to llvm::sort in response to r327219

Summary:
r327219 added wrappers to std::sort which randomly shuffle the container before sorting.
This will help in uncovering non-determinism caused due to undefined sorting
order of objects having the same key.

To make use of that infrastructure we need to invoke llvm::sort instead of std::sort.

Note: This patch is one of a series of patches to replace *all* std::sort to llvm::sort.
Refer the comments section in D44363 for a list of all the required patches.

Reviewers: JDevlieghere, zturner, echristo, dberris, friss

Reviewed By: echristo

Subscribers: gbedwell, llvm-commits

Differential Revision: https://reviews.llvm.org/D45141

llvm-svn: 328943
diff --git a/llvm/tools/llvm-nm/llvm-nm.cpp b/llvm/tools/llvm-nm/llvm-nm.cpp
index 6a4f997..6d0e613 100644
--- a/llvm/tools/llvm-nm/llvm-nm.cpp
+++ b/llvm/tools/llvm-nm/llvm-nm.cpp
@@ -705,7 +705,7 @@
 
     if (ReverseSort)
       Cmp = [=](const NMSymbol &A, const NMSymbol &B) { return Cmp(B, A); };
-    std::sort(SymbolList.begin(), SymbolList.end(), Cmp);
+    llvm::sort(SymbolList.begin(), SymbolList.end(), Cmp);
   }
 
   if (!PrintFileName) {