Use GetLinkerPath utility function to find linker for NaCl toolchain

Summary:
This is more consistent with other targets and also makes the -fuse-ld
flag work.

Reviewers: jvoung

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10697

llvm-svn: 245908
diff --git a/clang/lib/Driver/ToolChains.cpp b/clang/lib/Driver/ToolChains.cpp
index 7d6d257..cb4ec03 100644
--- a/clang/lib/Driver/ToolChains.cpp
+++ b/clang/lib/Driver/ToolChains.cpp
@@ -2359,7 +2359,7 @@
   }
 
   // Use provided linker, not system linker
-  Linker = GetProgramPath("ld");
+  Linker = GetLinkerPath();
   NaClArmMacrosPath = GetFilePath("nacl-arm-macros.s");
 }