MdePkg: BaseOrderedCollectionRedBlackTreeLib: silence invalid gcc warning

Gcc-4.4 reports the following build failure:

  BaseOrderedCollectionRedBlackTreeLib.c:
    In function 'OrderedCollectionInsert':
  BaseOrderedCollectionRedBlackTreeLib.c:586:
    error: 'Result' may be used uninitialized in this function

This is incorrect. There are two areas of use of Result to consider:

- In the very first while loop. The warning is likely not about this code
  area, because Result is assigned directly before use.

- The last use of Result in the function. The build warning / error is
  incorrect. For Result to be uninitialized at that point, the very first
  while loop must not have been entered at all (because that loop assigns
  a value to Result). However, if that loop is never entered, then Parent
  is still NULL. And Parent==NULL implies that the use of Result is never
  reached, because we jump to the Done label just before it.

Assign an irrelevant value of 0 to Result at the beginning of the function
in order to silence the incorrect warning.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15812 6f19259b-4bc3-4df7-8a09-765794883524
MdePkg: BaseOrderedCollectionRedBlackTreeLib: silence invalid VS2005 warnings

VS2005 reports the following build failure:

  BaseOrderedCollectionRedBlackTreeLib.c(151) : warning C4244:
    'return' : conversion from 'int' to 'BOOLEAN', possible loss of data
  BaseOrderedCollectionRedBlackTreeLib.c(840) : warning C4244:
    'return' : conversion from 'int' to 'BOOLEAN', possible loss of data

This is incorrect. The ISO C standard guarantees that the expressions in
question can only return values 0 and 1, both of which can be represented
by BOOLEAN (== UINT8, == unsigned char).

Silence the incorrect warnings with explicit casts to BOOLEAN.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15813 6f19259b-4bc3-4df7-8a09-765794883524
MdePkg: library INF files should reference feature PCDs under [FeaturePcd]

This patch updates users of PcdVerifyNodeInList and
PcdValidateOrderedCollection.

Suggested-by: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15814 6f19259b-4bc3-4df7-8a09-765794883524