Fix initializer for variables with attribute address_space set.

This would error in C++ mode unless the variable also had a cv
qualifier.

e.g.

__attribute__((address_space(2))) float foo = 1.0f; would error but
__attribute__((address_space(2))) const float foo = 1.0f; would not.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176121 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaOverload.cpp b/lib/Sema/SemaOverload.cpp
index 9bba5f6..16fd28e 100644
--- a/lib/Sema/SemaOverload.cpp
+++ b/lib/Sema/SemaOverload.cpp
@@ -1667,11 +1667,7 @@
     CanonTo = S.Context.getCanonicalType(ToType);
     if (CanonFrom.getLocalUnqualifiedType()
                                        == CanonTo.getLocalUnqualifiedType() &&
-        (CanonFrom.getLocalCVRQualifiers() != CanonTo.getLocalCVRQualifiers()
-         || CanonFrom.getObjCGCAttr() != CanonTo.getObjCGCAttr()
-         || CanonFrom.getObjCLifetime() != CanonTo.getObjCLifetime()
-         || (CanonFrom->isSamplerT() && 
-           CanonFrom.getAddressSpace() != CanonTo.getAddressSpace()))) {
+        CanonFrom.getLocalQualifiers() != CanonTo.getLocalQualifiers()) {
       FromType = ToType;
       CanonFrom = CanonTo;
     }