Bumped bootup memory limit on 32bit platforms using snapshot.

test/cctest/test-mark-compact.cc

Index: test/cctest/test-mark-compact.cc
diff --git a/test/cctest/test-mark-compact.cc b/test/cctest/test-mark-compact.cc
index 83a576d367c764a19e598811207833674f8cecc0..700f3222ae45b7b0d80476e3e225960c96bdd235 100644
--- a/test/cctest/test-mark-compact.cc
+++ b/test/cctest/test-mark-compact.cc
@@ -540,7 +540,7 @@ TEST(BootUpMemoryUse) {
       }
     } else {
       if (v8::internal::Snapshot::IsEnabled()) {
-        CHECK_LE(booted_memory - initial_memory, 2600 * 1024);  // 2484.
+        CHECK_LE(booted_memory - initial_memory, 2800 * 1024);  // 2484.
       } else {
         CHECK_LE(booted_memory - initial_memory, 2950 * 1024);  // 2844
       }