Hi,

This patch moves into one function building the typeof(null) values in
the D front-end.

Bootstrapped and regression tested on x86_64-linux-gnu.

Committed to trunk as r267955.

-- 
Iain
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gcc/d/ChangeLog:

2019-01-16  Iain Buclaw  <ibuclaw@gdcproject.org>

    * d-codegen.cc (build_typeof_null_value): New function.
    * d-tree.h (build_typeof_null_value): Declare.
    * d-convert.cc (convert_expr): Use build_typeof_null_value.
    * expr.cc (ExprVisitor::visit(NullExp)): Likewise.

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