Michael Buch a377cdd23d [lldb][TypeSystemClang] Add support for floating point template argument constants (#127206) ...

This patch adds support for template arguments of
`clang::TemplateArgument::ArgKind::StructuralValue` kind (added in
https://github.com/llvm/llvm-project/pull/78041). These are used for
non-type template parameters such as floating point constants. When LLDB
created `clang::NonTypeTemplateParmDecl`s, it previously assumed
integral values, this patch accounts for structural values too.

Anywhere LLDB assumed a `DW_TAG_template_value_parameter` was
`Integral`, it will now also check for `StructuralValue`, and will
unpack the `TemplateArgument` value and type accordingly.

We can rely on the fact that any `TemplateArgument` of `StructuralValue`
kind that the `DWARFASTParserClang` creates will have a valid value,
because it gets those from `DW_AT_const_value`.

2025-02-17 22:03:53 +00:00

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