Disable concurrent osr for test-mark-compact/BootUpMemoryUse.

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 0c95d94f4afad88bfbbdaeeb2aa1e12dd76cae68..9e09051305b36be6dcf0b9f731a1b9088eb311fc 100644
--- a/test/cctest/test-mark-compact.cc
+++ b/test/cctest/test-mark-compact.cc
@@ -496,6 +496,7 @@ TEST(BootUpMemoryUse) {
   intptr_t initial_memory = MemoryInUse();
   // Avoid flakiness.
   FLAG_crankshaft = false;
+  FLAG_concurrent_osr = false;
   FLAG_concurrent_recompilation = false;
 
   // Only Linux has the proc filesystem and only if it is mapped.  If it's not