[Bug d/96250] d: Field access in parentheses causes error: need 'this' for 'field' of type 'type'

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96250

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Iain Buclaw
<ibuc...@gcc.gnu.org>:

https://gcc.gnu.org/g:ee11a23b334d5fea08b80c2d87874388ed51d08e

commit r10-8649-gee11a23b334d5fea08b80c2d87874388ed51d08e
Author: Iain Buclaw <ibuc...@gdcproject.org>
Date:   Tue Jul 21 19:32:54 2020 +0200

    d: Field access in parentheses causes error: need 'this' for 'field' of
type 'type'

    1. Fixes an ICE in the front-end if a struct symbol were to appear twice
    in the compilation unit.

    2. Fixes a rejects-valid bug in the front-end where `(symbol)' was being
    resolved as a `var' expression, instead of `this.var'.

    gcc/d/ChangeLog:

            PR d/96250
            * dmd/dstruct.c (StructDeclaration::semantic): Error if
redefinition
            of struct exists in compilation.
            * dmd/expressionsem.c (ExpressionSemanticVisitor::visit(TypeExp)):
            Rewrite resolved field variables as 'this.var' before semantic.
            * dmd/parse.c (Parser::parseUnaryExp): Mark '(type) una_exp' as a
            parenthesized expression.

    gcc/testsuite/ChangeLog:

            PR d/96250
            * gdc.test/fail_compilation/fail17492.d: New test.
            * gdc.test/compilable/b9490.d: New test.
            * gdc.test/compilable/ice14739.d: New test.
            * gdc.test/fail_compilation/ice21060.d: New test.
            * gdc.test/fail_compilation/imports/ice21060a/package.d: New file.
            * gdc.test/fail_compilation/imports/ice21060b/package.d: New file.
            * gdc.test/fail_compilation/imports/ice21060c/package.d: New file.
            * gdc.test/fail_compilation/imports/ice21060d/package.d: New file.
            * gdc.test/runnable/b16278.d: New test.