- fix some cases where we are using uninitialized memory

runtime/platform/assert.cc

Index: runtime/platform/assert.cc
diff --git a/runtime/platform/assert.cc b/runtime/platform/assert.cc
index 000546a3debd25dd4091340f83972c9794b74628..524c7a2470fa4f75d007dfd12b3fe97024321a0f 100644
--- a/runtime/platform/assert.cc
+++ b/runtime/platform/assert.cc
@@ -20,6 +20,7 @@ void DynamicAssertionHelper::Fail(const char* format, ...) {
 
   // Print the file and line number into the buffer.
   char buffer[4 * KB];
+  MSAN_UNPOISON(buffer, sizeof(buffer));
   intptr_t file_and_line_length =
       snprintf(buffer, sizeof(buffer), "%s: %d: error: ", file, line_);