Port a workaround for LLVM bug about libc free programs to lld.

chrome/test/data/nacl/BUILD.gn

Index: chrome/test/data/nacl/BUILD.gn
diff --git a/chrome/test/data/nacl/BUILD.gn b/chrome/test/data/nacl/BUILD.gn
index 64e5d25b7b6e506f372f374d9291ba946ec6f188..8258044c866e4c3acf50b90c999fe98f8e134689 100644
--- a/chrome/test/data/nacl/BUILD.gn
+++ b/chrome/test/data/nacl/BUILD.gn
@@ -565,7 +565,11 @@ if (is_linux && is_clang) {
     # See more details:
     # https://llvm.org/bugs/show_bug.cgi?id=30403
     if (use_thin_lto) {
-      ldflags = [ "-Wl,-plugin-opt,O0" ]
+      if (use_lld) {
+        ldflags = [ "-Wl,--lto-O0" ]
+      } else {
+        ldflags = [ "-Wl,-plugin-opt,O0" ]
+      }
     }
   }