[llvm-rtdyld][llvm-jitlink] Rename struct member to remove ambiguity.

This ambiguity (struct member name matching struct name) was causing errors on
a few of the MSVC bots. Hopefully this should fix it.

llvm-svn: 370969
diff --git a/llvm/tools/llvm-jitlink/llvm-jitlink.cpp b/llvm/tools/llvm-jitlink/llvm-jitlink.cpp
index 6dbd846..64b8692 100644
--- a/llvm/tools/llvm-jitlink/llvm-jitlink.cpp
+++ b/llvm/tools/llvm-jitlink/llvm-jitlink.cpp
@@ -610,12 +610,10 @@
 }
 
 struct JITLinkTimers {
-  TimerGroup JITLinkTimers{"llvm-jitlink timers",
-                           "timers for llvm-jitlink phases"};
-  Timer LoadObjectsTimer{"load", "time to load/add object files",
-                         JITLinkTimers};
-  Timer LinkTimer{"link", "time to link object files", JITLinkTimers};
-  Timer RunTimer{"run", "time to execute jitlink'd code", JITLinkTimers};
+  TimerGroup JITLinkTG{"llvm-jitlink timers", "timers for llvm-jitlink phases"};
+  Timer LoadObjectsTimer{"load", "time to load/add object files", JITLinkTG};
+  Timer LinkTimer{"link", "time to link object files", JITLinkTG};
+  Timer RunTimer{"run", "time to execute jitlink'd code", JITLinkTG};
 };
 
 int main(int argc, char *argv[]) {