[perl #127988] [BUG] Lack of space after != operator changes behaviour

[via RT]

# New Ticket Created by  Zoffix Znet 
# Please include the string:  [perl #127988]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org/Ticket/Display.html?id=127988 >



If the programmer omits the space after the != (not equal, numeral) operator, 
the behavior of the operator changes to: [assign RHS to LHS, return !RHS], as 
can be seen from these examples:

<ZoffixW> m: say 0 != 0
<camelia> rakudo-moar f05c77: OUTPUT«False␤»
<ZoffixW> m: say 0 !=0
<camelia> rakudo-moar f05c77: OUTPUT«Cannot modify an immutable Int␤  in block 
<unit> at /tmp/7Z5OWfl3Go line 1␤␤»
<ZoffixW> m: my $x = 42; say $x !=0; say $x
<camelia> rakudo-moar f05c77: OUTPUT«True␤0␤»
<ZoffixW> m: my $x = 0; say $x !=42; say $x
<camelia> rakudo-moar f05c77: OUTPUT«False␤42␤»

This behaviour is confusing and probably not wanted by most programmers.