[Issue 22058] New: [Reg 2.074] std.traits.isNumeric & isSigned should not be true for complex or imaginary types

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=22058

          Issue ID: 22058
           Summary: [Reg 2.074] std.traits.isNumeric & isSigned should not
                    be true for complex or imaginary types
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: regression
          Priority: P1
         Component: phobos
          Assignee: nobody at puremagic.com
          Reporter: n8sh.secondary at hotmail.com

Below code fails from 2.074 onward:

---
import std.traits;

static assert(!isNumeric!ifloat);
static assert(!isNumeric!cfloat);
static assert(!isSigned!ifloat);
static assert(!isSigned!cfloat);
---

Note that in 2.074 isFloatingPoint remained false for ifloat and cfloat,
creating an inconsistency.

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