Predicate overwrite of BuildVersionFile on OverwriteCoreClrPackageVersion == true

Author: swgillespie

tests/dir.props

@@ -103,6 +103,10 @@
     <RestorePackages>false</RestorePackages>
   </PropertyGroup>
 
+  <PropertyGroup Condition="'$(OverwriteCoreClrPackageVersion)' == 'true'">
+    <BuildVersionFile>$(BaseIntermediateOutputPath)BuildVersion-$(OfficialBuildId).props</BuildVersionFile>
+  </PropertyGroup>
+
   <!-- If we want to overwrite the desired CoreCLR package version, we need to get the new version from the generated props file in bin/obj -->
   <Import Condition="'$(OverwriteCoreClrPackageVersion)' == 'true'" Project="$(BuildVersionFile)" />