[perl #131695] Confusion in precedence with <<$foo>>[0]

[brian d foy]

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It seems that term precedence with << >> gets confused.

I also asked this on StackOverflow: https://stackoverflow.com/q/44872419/2766176

    my $string = '5+8i';

    {
    my $number = val $string;
    put "Type: " ~ $number.^name;
    put "Elems: " ~ $number.elems;
    put "First: " ~ $number.[0];
    }

    {
    my $number = <<$string>>;
    put "Type: " ~ $number.^name;
    put "Elems: " ~ $number.elems;
    put "First: " ~ $number.[0];
    }

    {
    my $number = <<$string>>[0];
    put "Type: " ~ $number;
#`(
===SORRY!=== Error while compiling ...
Cannot use variable $number in declaration to initialize itself
------>     put "Type: " ~ $⏏number;
    expecting any of:
        double quotes
        statement end
        statement modifier
        statement modifier loop
        term
)
    }