Subzero: Add -Wshadow to the build.

src/IceInstX8632.cpp

Index: src/IceInstX8632.cpp
diff --git a/src/IceInstX8632.cpp b/src/IceInstX8632.cpp
index c6d6abf46b2a439395e3078e74a247c880687533..49557152258ae2942a6800b8664aefe0c68c736e 100644
--- a/src/IceInstX8632.cpp
+++ b/src/IceInstX8632.cpp
@@ -76,10 +76,10 @@ void MachineTraits<TargetX8632>::X86Operand::dump(const Cfg *,
 }
 
 MachineTraits<TargetX8632>::X86OperandMem::X86OperandMem(
-    Cfg *Func, Type Ty, Variable *Base, Constant *Offset, Variable *Index,
-    uint16_t Shift, SegmentRegisters SegmentReg)
-    : X86Operand(kMem, Ty), Base(Base), Offset(Offset), Index(Index),
-      Shift(Shift), SegmentReg(SegmentReg), Randomized(false) {
+    Cfg *Func, Type Ty, Variable *MyBase, Constant *MyOffset, Variable *MyIndex,
+    uint16_t MyShift, SegmentRegisters MySegmentReg)
+    : X86Operand(kMem, Ty), Base(MyBase), Offset(MyOffset), Index(MyIndex),
+      Shift(MyShift), SegmentReg(MySegmentReg), Randomized(false) {
   assert(Shift <= 3);
   Vars = nullptr;
   NumVars = 0;