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We are about to deprecate core_lib:get_anno/1 and core_lib:set_anno/2,
so we should stop using them in the compiler.
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Use the same syntax for map pairs in Core Erlang code as in the
Erlang Code. This Erlang code:
M#{x:=42,y=>1}
will look like this in Core Erlang:
~{'x':=42,'y'=>1|M}~
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A map key in a pattern would be incorrectly pretty-printed.
As an example, the pattern in:
x() ->
#{ #{ a => 3 } := 42 } = X.
would be pretty-printed as:
<~{~<~{~<'a',3>}~,42>}~
instead of:
<~{~<~{::<'a',3>}~,42>}~
When this problem has been corrected, the workaround for it in
cerl:ann_c_map/3 can be removed. The workaround was not harmless,
as it would cause the following map update to incorrectly succeed:
(#{})#{a:=1}
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Key and value were interchanged.
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Not only variables are allowed as arguments, the name should reflect that.
Change cerl Map argument interface
* cerl:map_arg/1 is more suitable then cerl:map_val/1 in this case.
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Ex.
Instead of:
M~{~<K,V>}~
The format is now:
~{~<K,V>|M}~
This also removes a shift/reduce warning.
The changes in core_pp now requires compiler-5.0 to compile
because of is_map/1 guard, i.e. a need for a compiler with Maps know-how.
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Simplify compiler internals and parsing of core format.
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