LDC halt with -w and use of function _and_ parameter magic attributes. #4907
Description
When compiling a function with -w and @target attribute LDC will exit with a spurious warning: "ignoring unrecognized special parameter attribute ...".
Here's the program that elicited the warning and subsequent exit on godbolt using 1.39.0:
import core.attribute;
@target("arch=znver4") void f(size_t n, int* a, int* b, @restrict int* dst) {
foreach(i, ref x; dst[0 .. n])
x = a[i] + b[i];
}