[Issue 13718] New: unary minus on number literals has lower precedence than UFCS

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13718

          Issue ID: 13718
           Summary: unary minus on number literals has lower precedence
                    than UFCS
           Product: D
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: DMD
          Assignee: nobody at puremagic.com
          Reporter: code at dawg.eu

This is somewhat surprising when you think of the following.
    -2.sin `-sin(2)` instead of `sin(-2)`
But OTOH it's consistent with so just explicitly explaining this in the docs
would be enough IMO.
    -obj.val

Definitely a problem is the compiler error for this.
    -2.toJson

'(JSONValue __ctmp1507 = JSONValue;
, __ctmp1507).this(2)' is not of arithmetic type, it is a JSONValue

It should read something like 'unary minus cannot be applied to a JSONValue'.

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