[Solaris] Fix Solaris build bots

[ro]

The Solaris buildbots are back to normal again. Thanks for the quick fix.

llvm/unittests/IR/ConstantsTest.cpp

 TEST(ConstantsTest, GetSplatValueRoundTrip) {
   LLVMContext Context;
 
   Type *FloatTy = Type::getFloatTy(Context);
   Type *Int32Ty = Type::getInt32Ty(Context);
   Type *Int8Ty = Type::getInt8Ty(Context);
 
   for (unsigned Min : {1, 2, 8}) {
-    ElementCount SEC = {Min, true};
-    ElementCount FEC = {Min, false};
+    ElementCount ScalableEC = {Min, true};
+    ElementCount FixedEC = {Min, false};
 
-    for (auto EC : {SEC, FEC}) {
+    for (auto EC : {ScalableEC, FixedEC}) {
       for (auto *Ty : {FloatTy, Int32Ty, Int8Ty}) {
         Constant *Zero = Constant::getNullValue(Ty);
         Constant *One = Constant::getAllOnesValue(Ty);
 
         for (auto *C : {Zero, One}) {
           Constant *Splat = ConstantVector::getSplat(EC, C);
           ASSERT_NE(nullptr, Splat);