C++: Expose 'MemoryLocation0'.

Author: MathiasVP

cpp/ql/lib/semmle/code/cpp/ir/implementation/aliased_ssa/internal/AliasedSSA.qll

@@ -235,7 +235,7 @@ private newtype TMemoryLocation =
  *
  * Some of these memory locations will be filtered out for performance reasons before being passed to SSA construction.
  */
-abstract private class MemoryLocation0 extends TMemoryLocation {
+abstract class MemoryLocation0 extends TMemoryLocation {
   final string toString() {
     if this.isMayAccess()
     then result = "?" + this.toStringInternal()

cpp/ql/lib/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/SimpleSSA.qll

@@ -73,6 +73,8 @@ class MemoryLocation extends TMemoryLocation {
   final predicate canReuseSsa() { canReuseSsaForVariable(var) }
 }
 
+class MemoryLocation0 = MemoryLocation;
+
 predicate canReuseSsaForOldResult(Instruction instr) { none() }
 
 abstract class VariableGroup extends Unit {