[MoarVM Bump] Brings 15 commits

MoarVM bump brought: MoarVM/MoarVM@2019.07.1-233-g270f1b0be...2019.07.1-248-gb72a790b1
b72a790b1 Merge pull request #1186 from dogbert17/fix-uninit-field
6ecbf6e08 Fix uninitialized field
44811cab6 Merge pull request #1185 from MasterDuke17/fix_underflowing_exclusive_times_in_profiles
81f9ccdfa Fix profiler's call graph node getting missed by the GC
9f24debe2 Check if subtracting a successor's exclusive...
1546c8c4d Merge pull request #1183 from dogbert17/fix-segv-in-procops
5dfed0087 Fix possible SEGV in async_spawn_on_exit
acb04a448 Fix possible memory corruption in resolve_using_guards
2a796fe3c Merge pull request #1181 from dogbert17/add-missing-static
fc78a13b6 Merge pull request #1180 from dogbert17/fix-m-1172
3d83cb469 Add a few missing static keywords before a few functions
6926a492e Fix for M#1172
92dd055be Merge pull request #1164 from dogbert17/fix-returntype
8efd38251 Make scripts executable
40fcdb7e8 Fix incorrect return type in get_effective_size

tools/templates/MOAR_REVISION

@@ -1 +1 @@
-2019.07.1-233-g270f1b0be
+2019.07.1-248-gb72a790b1