`pragma(inline)` ignored in template mixin declaration initializers

[limepoutine]

mixin template withBoilerplate(alias dg)
{
    static if (is(typeof(dg()) ReturnType == void))
    {
        typeof(null) withBoilerplateResult = {
            pragma(inline, true);
            dg();
            return null;
        }();
    }
    else
    {
        ReturnType withBoilerplateResult = {
            pragma(inline, true);
            ReturnType value = dg();
            return value;
        }();
    }
}

void main() {
  mixin withBoilerplate!({});
}

Compile with -wi, no inlining and no diagnostics.

FuncExp in these initializers do not go in fd.localsymtab. Fixing this also requires relaxing some of the inlining constraints, but that would be mostly trivial.