fix Issue 22028 - importC: Parser accepts initializers for struct members

[ibuclaw]

Adds cparseStructDeclaration, a stripped down version of cparseDeclaration that only deals with parsing a struct-declaration as per C11 6.7.2 (renamed to member-declaration in C2X 6.7.2).

Removing dead code from cparseDeclaration to be done in a follow-up PR. There's also room for de-duplicating the two, but again such refactoring will be done in subsequent follow-ups if it makes sense.

[dlang-bot]

Thanks for your pull request, @ibuclaw!

Bugzilla references

Auto-close	Bugzilla	Severity	Description
✓	22028	normal	importC: Parser accepts initializers for struct members

Testing this PR locally

If you don't have a local development environment setup, you can use Digger to test this PR:

dub run digger -- build "master + dmd#12692"

[thewilsonator]

src/dmd/cparse.d(1750): Error: function `dmd.cparse.CParser!(ASTCodegen).CParser.cparseDeclarator(DTR declarator, Type t, out Identifier pident, ulong storageClass = 0LU)` is not callable using argument types `(Type, Identifier)`
src/dmd/cparse.d(1750):        cannot pass argument `tspec` of type `dmd.mtype.Type` to parameter `DTR declarator`
src/dmd/dmodule.d(1054): Error: template instance `dmd.cparse.CParser!(ASTCodegen)` error instantiating
src/dmd/dmodule.d(785):        instantiated from here: `parseModule!(ASTCodegen)`

[ibuclaw]

src/dmd/cparse.d(1750): Error: function `dmd.cparse.CParser!(ASTCodegen).CParser.cparseDeclarator(DTR declarator, Type t, out Identifier pident, ulong storageClass = 0LU)` is not callable using argument types `(Type, Identifier)`
src/dmd/cparse.d(1750):        cannot pass argument `tspec` of type `dmd.mtype.Type` to parameter `DTR declarator`
src/dmd/dmodule.d(1054): Error: template instance `dmd.cparse.CParser!(ASTCodegen)` error instantiating
src/dmd/dmodule.d(785):        instantiated from here: `parseModule!(ASTCodegen)`

Yes, I knew ahead of time that this would need adjusting if #12691 went in first.

[thewilsonator]

Leaving merging to you

[ibuclaw]

Rebased, ping @WalterBright

Conversations resolved.