realloc-16687 test leaks memory

[alexcrichton]

$ rustc src/test/run-pass/realloc-16687.rs && valgrind --leak-check=full ./realloc-16687 
==4914== Memcheck, a memory error detector
==4914== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==4914== Using Valgrind-3.10.0.SVN and LibVEX; rerun with -h for copyright info
==4914== Command: ./realloc-16687
==4914== 
==4914== 
==4914== HEAP SUMMARY:
==4914==     in use at exit: 832 bytes in 16 blocks
==4914==   total heap usage: 92 allocs, 76 frees, 8,384 bytes allocated
==4914== 
==4914== 416 bytes in 8 blocks are definitely lost in loss record 1 of 2
==4914==    at 0x167BEC: je_rallocx (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x1157B6: heap::imp::reallocate::h79d83959002ee6a8rha (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x1156F5: heap::reallocate::hab85b6905c8086a1yaa (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x1153E0: test_triangle::reallocate::hce22b2100fcc031d6ia (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x114D99: test_triangle::test_4::h7f38076d2656a38dQva (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x111B68: test_triangle::hae2dbf867a1dc84dMaa (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x1113BD: main::h796c90ed3713cda0haa (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x149DEA: start::closure.8494 (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x161F8B: rust_try_inner (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x161F75: rust_try (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x15F582: unwind::try::hc32837413dc79d50uId (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x15F42B: task::Task::run::he2343ec4d9f3287dfYc (in /home/alex/code/rust2/realloc-16687)
==4914== 
==4914== 416 bytes in 8 blocks are definitely lost in loss record 2 of 2
==4914==    at 0x167BEC: je_rallocx (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x1157B6: heap::imp::reallocate::h79d83959002ee6a8rha (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x1156F5: heap::reallocate::hab85b6905c8086a1yaa (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x1153E0: test_triangle::reallocate::hce22b2100fcc031d6ia (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x114E78: test_triangle::test_4::h7f38076d2656a38dQva (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x111B68: test_triangle::hae2dbf867a1dc84dMaa (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x1113BD: main::h796c90ed3713cda0haa (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x149DEA: start::closure.8494 (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x161F8B: rust_try_inner (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x161F75: rust_try (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x15F582: unwind::try::hc32837413dc79d50uId (in /home/alex/code/rust2/realloc-16687)
==4914==    by 0x15F42B: task::Task::run::he2343ec4d9f3287dfYc (in /home/alex/code/rust2/realloc-16687)
==4914== 
==4914== LEAK SUMMARY:
==4914==    definitely lost: 832 bytes in 16 blocks
==4914==    indirectly lost: 0 bytes in 0 blocks
==4914==      possibly lost: 0 bytes in 0 blocks
==4914==    still reachable: 0 bytes in 0 blocks
==4914==         suppressed: 0 bytes in 0 blocks
==4914== 
==4914== For counts of detected and suppressed errors, rerun with: -v
==4914== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)

I'm ignoring this test for now as it looks fairly complicated and this is required for a new snapshot to pass.

[alexcrichton]

cc @pnkfelix

[thestinger]

@alexcrichton: I don't see a deallocate call anywhere, so it looks like it's just a buggy test.

[pnkfelix]

oh yeah, that test definitely looks buggy. will fix.