[compiler] Fix AccessBuilder::ForNameHashField

HashField is a 32-bit field.

R=bmeurer@chromium.org, joransiu@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com, bjaideep@ca.ibm.com
BUG=

Review-Url: https://codereview.chromium.org/2117403002
Cr-Commit-Position: refs/heads/master@{#37557}

src/compiler/access-builder.cc

@@ -369,9 +369,9 @@ FieldAccess AccessBuilder::ForMapPrototype() {
 
 // static
 FieldAccess AccessBuilder::ForNameHashField() {
-  FieldAccess access = {
-      kTaggedBase,      Name::kHashFieldOffset, Handle<Name>(),
-      Type::Internal(), MachineType::Pointer(), kNoWriteBarrier};
+  FieldAccess access = {kTaggedBase,           Name::kHashFieldOffset,
+                        Handle<Name>(),        Type::Internal(),
+                        MachineType::Uint32(), kNoWriteBarrier};
   return access;
 }