Subzero: Add -Wshadow to the build.

src/IceCompileServer.h

Index: src/IceCompileServer.h
diff --git a/src/IceCompileServer.h b/src/IceCompileServer.h
index e027cbbe551a8dcd552dce2cf673070ceb2943b1..050359e50f02e80c19d83050ceca9e0a135ba3a7 100644
--- a/src/IceCompileServer.h
+++ b/src/IceCompileServer.h
@@ -44,7 +44,7 @@ class CompileServer {
   CompileServer &operator=(const CompileServer &) = delete;
 
 public:
-  explicit CompileServer(Compiler &Comp) : Comp(Comp) {}
+  explicit CompileServer(Compiler &MyComp) : Comp(MyComp) {}
 
   virtual ~CompileServer() = default;
 
@@ -67,8 +67,8 @@ class CLCompileServer : public CompileServer {
   CLCompileServer &operator=(const CLCompileServer &) = delete;
 
 public:
-  CLCompileServer(Compiler &Comp, int argc, char **argv)
-      : CompileServer(Comp), argc(argc), argv(argv) {}
+  CLCompileServer(Compiler &Comp, int MyArgc, char **MyArgv)
+      : CompileServer(Comp), argc(MyArgc), argv(MyArgv) {}
 
   ~CLCompileServer() final = default;