Fix clang warnings in PoolAlloc.cpp
Fix clang warnings in PoolAlloc.cpp

Issue=127
Signed-off-by: Nicolas Capens
Signed-off-by: Daniel Koch

Part 4 of 5: <http://webkit.org/b/56337> Enable -Werror on ANGLE

Upstream bug: <http://code.google.com/p/angleproject/issues/detail?id=127>

Fixes the following static analyzer warnings:

    src/compiler/PoolAlloc.cpp:154:26:{154:24-154:25}{154:28-154:42}: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare,2]
         for (size_t x = 0; x < guardBlockSize; x++) {
                            ~ ^ ~~~~~~~~~~~~~~
    src/compiler/PoolAlloc.cpp:159:55:{159:54-159:56}{160:30-160:34}: warning: conversion specifies type 'unsigned int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat,7]
                 sprintf(assertMsg, "PoolAlloc: Damage %s %u byte allocation at 0x%p\n",
                                                          ~^
                                                          %lu
    fix-it:"src/compiler/PoolAlloc.cpp":{159:54-159:56}:"%lu"

* src/compiler/PoolAlloc.cpp:
(TAllocation::checkGuardBlock): Changed '%u' to '%lu' for size_t
variable.  Put for loop inside #ifdef GUARD_BLOCKS/#endif macros
to fix tautological-compare warning.
(TAllocation::checkAllocList): Added newline to end of file.

Author:    David Kilzer <9dddda5b47459e138db3e48e9e36e3396d29c6c1@apple.com>

csulmone/angle,csulmone/angle,csulmone/angle,csulmone/angle