Reland "Make compiler/optimizing/ symbols hidden."
This reverts commit 0a51605ddd81635135463dab08b6f7c21b58ffb0.
Reason for revert: Reland after some of the required work
was merged in other CLs.
Also address a TODO from the original CL to mark required
symbols with EXPORT in `intrinsic_objects.h`.
Also mark symbols in new files as HIDDEN.
Bug: 186902856
Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing
Change-Id: I936d448983928af23614ca82c2d0bf9a645e2c52
diff --git a/compiler/optimizing/stack_map_test.cc b/compiler/optimizing/stack_map_test.cc
index 23af1f7..a2c30e7 100644
--- a/compiler/optimizing/stack_map_test.cc
+++ b/compiler/optimizing/stack_map_test.cc
@@ -18,12 +18,13 @@
#include "art_method.h"
#include "base/arena_bit_vector.h"
+#include "base/macros.h"
#include "base/malloc_arena_pool.h"
#include "stack_map_stream.h"
#include "gtest/gtest.h"
-namespace art {
+namespace art HIDDEN {
// Check that the stack mask of given stack map is identical
// to the given bit vector. Returns true if they are same.