Subzero: Add -Wshadow to the build.

src/IceCfgNode.cpp

Index: src/IceCfgNode.cpp
diff --git a/src/IceCfgNode.cpp b/src/IceCfgNode.cpp
index 5ff693625b2c1f60265161726a4ad85407fad6f7..e696d075f5450cf2670ee217b353a199fd3c8f3d 100644
--- a/src/IceCfgNode.cpp
+++ b/src/IceCfgNode.cpp
@@ -24,8 +24,8 @@
 
 namespace Ice {
 
-CfgNode::CfgNode(Cfg *Func, SizeT LabelNumber)
-    : Func(Func), Number(LabelNumber) {}
+CfgNode::CfgNode(Cfg *MyFunc, SizeT LabelNumber)
+    : Func(MyFunc), Number(LabelNumber) {}
 
 // Returns the name the node was created with.  If no name was given,
 // it synthesizes a (hopefully) unique name.
@@ -882,7 +882,7 @@ void updateStats(Cfg *Func, const Inst *I) {
 
 } // end of anonymous namespace
 
-void CfgNode::emit(Cfg *Func) const {
+void CfgNode::emit() const {
   if (!BuildDefs::dump())
     return;
   Func->setCurrentNode(this);
@@ -945,9 +945,9 @@ class BundleEmitHelper {
   BundleEmitHelper &operator=(const BundleEmitHelper &) = delete;
 
 public:
-  BundleEmitHelper(Assembler *Asm, TargetLowering *Target,
+  BundleEmitHelper(Assembler *MyAsm, TargetLowering *MyTarget,
                    const InstList &Insts)
-      : Asm(Asm), Target(Target), End(Insts.end()), BundleLockStart(End),
+      : Asm(MyAsm), Target(MyTarget), End(Insts.end()), BundleLockStart(End),
         BundleSize(1 << Asm->getBundleAlignLog2Bytes()),
         BundleMaskLo(BundleSize - 1), BundleMaskHi(~BundleMaskLo) {}
   // Check whether we're currently within a bundle_lock region.
@@ -1055,7 +1055,7 @@ private:
 
 } // end of anonymous namespace
 
-void CfgNode::emitIAS(Cfg *Func) const {
+void CfgNode::emitIAS() const {
   Func->setCurrentNode(this);
   Assembler *Asm = Func->getAssembler<>();
   // TODO(stichnot): When sandboxing, defer binding the node label
@@ -1163,7 +1163,7 @@ void CfgNode::emitIAS(Cfg *Func) const {
   assert(!Retrying);
 }
 
-void CfgNode::dump(Cfg *Func) const {
+void CfgNode::dump() const {
   if (!BuildDefs::dump())
     return;
   Func->setCurrentNode(this);