@property<EOL><INDENT>def _reserved_symbols(self):<DEDENT>
<EOL>remapped_parents_symbols = {<EOL>self.resolve(v) for v in self.non_local_symbols}<EOL>return (<EOL>self.global_symbols_in_children |<EOL>self.global_symbols |<EOL>remapped_parents_symbols<EOL>)<EOL>
Helper property for the build_remap_symbols method.  This
property first resolves _all_ local references from parents,
skipping all locally declared symbols as the goal is to generate
a local mapping for them, but in a way not to shadow over any
already declared symbols from parents, and also the implicit
globals in all children.

This is marked "private" as there are a number of computations
involved, and is really meant for the build_remap_symbols to use
for its standard flow.