Subzero: Add -Wshadow to the build.

src/IceTimerTree.cpp

Index: src/IceTimerTree.cpp
diff --git a/src/IceTimerTree.cpp b/src/IceTimerTree.cpp
index 818efc30bb4b2e389d98aaca57301f0d88685965..69611be794bddd03f09adca0a9f5f6c2db7565f1 100644
--- a/src/IceTimerTree.cpp
+++ b/src/IceTimerTree.cpp
@@ -19,13 +19,14 @@
 
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wunused-parameter"
+#pragma clang diagnostic ignored "-Wshadow"
 #include "llvm/Support/Timer.h"
 #pragma clang diagnostic pop
 
 namespace Ice {
 
-TimerStack::TimerStack(const IceString &Name)
-    : Name(Name), FirstTimestamp(timestamp()), LastTimestamp(FirstTimestamp) {
+TimerStack::TimerStack(const IceString &MyName)
+    : Name(MyName), FirstTimestamp(timestamp()), LastTimestamp(FirstTimestamp) {
   if (!BuildDefs::dump())
     return;
   Nodes.resize(1); // Reserve Nodes[0] for the root node (sentinel).
@@ -43,16 +44,16 @@ TimerStack::TimerStack(const IceString &Name)
 
 // Returns the unique timer ID for the given Name, creating a new ID
 // if needed.
-TimerIdT TimerStack::getTimerID(const IceString &Name) {
+TimerIdT TimerStack::getTimerID(const IceString &MyName) {
   if (!BuildDefs::dump())
     return 0;
-  if (IDsIndex.find(Name) == IDsIndex.end()) {
-    IDsIndex[Name] = IDs.size();
-    IDs.push_back(Name);
+  if (IDsIndex.find(MyName) == IDsIndex.end()) {
+    IDsIndex[MyName] = IDs.size();
+    IDs.push_back(MyName);
     LeafTimes.push_back(decltype(LeafTimes)::value_type());
     LeafCounts.push_back(decltype(LeafCounts)::value_type());
   }
-  return IDsIndex[Name];
+  return IDsIndex[MyName];
 }
 
 // Creates a mapping from TimerIdT (leaf) values in the Src timer