C11 6.7.9 Initialization Represents the C initializer-list
Copy the AST for Initializer.
CTFE-only helper function for VisitInitializer.
Visit each Initializer in init. Call a function visit%s(init) for each node, where %s is the op of the node. Otherwise call visitDefault(init) for that node. If the visit function returns R.init, continue visiting each node, otherwise return the value of R.
Holds the designation (opt) initializer for C initializers
Holds the designator for C initializers
Defines initializers of variables, e.g. the array literal in int[3] x = [0, 1, 2].