Modifiers: add StructRNA pointer field to ModifierTypeInfo

This reduces the number of places that have to be modified
when a new modifier is added.

Reviewers: campbellbarton

Differential Revision: https://developer.blender.org/D9000

source/blender/modifiers/intern/MOD_array.c

@@ -1010,6 +1010,7 @@ ModifierTypeInfo modifierType_Array = {
     /* name */ "Array",
     /* structName */ "ArrayModifierData",
     /* structSize */ sizeof(ArrayModifierData),
+    /* srna */ &RNA_ArrayModifier,
     /* type */ eModifierTypeType_Constructive,
     /* flags */ eModifierTypeFlag_AcceptsMesh | eModifierTypeFlag_SupportsMapping |
         eModifierTypeFlag_SupportsEditmode | eModifierTypeFlag_EnableInEditmode |