Remove the is_nested bit from the BlockInfo structure.

syzygy/agent/asan/unittest_util.cc

Index: syzygy/agent/asan/unittest_util.cc
diff --git a/syzygy/agent/asan/unittest_util.cc b/syzygy/agent/asan/unittest_util.cc
index 8b2bfda5e710ab5dc1f04a2323b10273d55b06b5..b0cfc2d99c783fae538256c836d47324e232483f 100644
--- a/syzygy/agent/asan/unittest_util.cc
+++ b/syzygy/agent/asan/unittest_util.cc
@@ -321,7 +321,7 @@ bool FakeAsanBlock::InitializeBlock(uint32_t alloc_size) {
                               &layout));
 
   // Initialize the Asan block.
-  BlockInitialize(layout, buffer_align_begin, false, &block_info);
+  BlockInitialize(layout, buffer_align_begin, &block_info);
   EXPECT_NE(reinterpret_cast<void*>(NULL), block_info.body);
 
   StackCapture stack;