[gn] Turn off lsan on mac asan

Chromium doesn't support lsan with mac's current toolchain.

BUG=chromium:644643
NOTRY=true

Review-Url: https://codereview.chromium.org/2322493002
Cr-Commit-Position: refs/heads/master@{#39255}

infra/mb/mb_config.pyl

@@ -60,7 +60,7 @@
       'V8 Mac64': 'gn_release_x64',
       'V8 Mac64 - debug': 'gn_debug_x64',
       'V8 Mac GC Stress': 'gn_debug_x86',
-      'V8 Mac64 ASAN': 'gyp_release_x64_asan',
+      'V8 Mac64 ASAN': 'gyp_release_x64_asan_no_lsan',
       # Sanitizers.
       'V8 Linux64 ASAN': 'gn_release_x64_asan',
       'V8 Linux64 TSAN': 'gn_release_x64_tsan',
@@ -177,7 +177,7 @@
       'v8_mac_gc_stress_dbg': 'gn_debug_x86_trybot',
       'v8_mac64_rel': 'gn_release_x64_trybot',
       'v8_mac64_dbg': 'gn_debug_x64_minimal_symbols',
-      'v8_mac64_asan_rel': 'gyp_release_x64_asan',
+      'v8_mac64_asan_rel': 'gyp_release_x64_asan_no_lsan',
       'v8_linux_arm_rel_ng': 'gn_release_simulate_arm_trybot',
       'v8_linux_arm_dbg': 'gn_debug_simulate_arm',
       'v8_linux_arm_armv8a_rel': 'gn_release_simulate_arm_trybot',
@@ -378,8 +378,8 @@
     # Gyp release configs for x64.
     'gyp_release_x64': [
       'gyp', 'release_bot', 'x64', 'swarming'],
-    'gyp_release_x64_asan': [
-      'gyp', 'release_bot', 'x64', 'asan', 'lsan', 'swarming'],
+    'gyp_release_x64_asan_no_lsan': [
+      'gyp', 'release_bot', 'x64', 'asan', 'swarming'],
     'gyp_release_x64_asan_minimal_symbols_coverage': [
       'gyp', 'release_bot', 'x64', 'asan', 'bb', 'coverage', 'lsan',
       'minimal_symbols', 'swarming'],