Fix maybe_string_add for adds that have no type feedback where --always-opt is on.

test/test262/test262.status

 
 # Copyright 2011 the V8 project authors. All rights reserved.
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 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
@@ skipping 14 matching lines @@
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 [
 [ALWAYS, {
   ############################### BUGS ###################################
 
   '15.5.4.9_CE': [['no_i18n', SKIP]],
 
-  # TODO(mstarzinger): Optimizing top-level code found some issues. Fix!
-  'S11.6.1_A2.2_T2': [PASS, NO_VARIANTS],
-  'S11.6.1_A3.2_T2.2': [PASS, NO_VARIANTS],
-  'S11.6.1_A3.2_T2.4': [PASS, NO_VARIANTS],
-
   # BUG(v8:3455)
   '11.2.3_b': [FAIL],
   '12.2.3_b': [FAIL],
 
   ############################### ES6 ###################################
   # ES6 allows block-local functions.
   'Sbp_A1_T1': [PASS, FAIL_OK],
   'Sbp_A2_T1': [PASS, FAIL_OK],
   'Sbp_A2_T2': [PASS, FAIL_OK],
   'Sbp_A3_T1': [PASS, FAIL_OK],
@@ skipping 246 matching lines @@
 
   # BUG(3251225): Tests that timeout with --nocrankshaft.
   'S15.1.3.1_A2.4_T1': [SKIP],
   'S15.1.3.1_A2.5_T1': [SKIP],
   'S15.1.3.2_A2.4_T1': [SKIP],
   'S15.1.3.2_A2.5_T1': [SKIP],
   'S15.1.3.3_A2.3_T1': [SKIP],
   'S15.1.3.4_A2.3_T1': [SKIP],
 }],  # 'arch == arm or arch == mipsel or arch == mips or arch == arm64'
 ]