[COMMITTED 13/41] gccrs: Add multiple missing builtin attribute values

[arthur.cohen@embecosm.com]

From: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Those attributes should be considered as builtin attributes but were
missing from the list of builtin attributes.

gcc/rust/ChangeLog:

	* util/rust-attributes.cc: Add "feature", "no_core", "doc",
	"crate_name", "crate_type" and "may_dandle" to the list of builtin
	attributes.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
---
 gcc/rust/util/rust-attributes.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/gcc/rust/util/rust-attributes.cc b/gcc/rust/util/rust-attributes.cc
index b3d60791432..719a972c9d1 100644
--- a/gcc/rust/util/rust-attributes.cc
+++ b/gcc/rust/util/rust-attributes.cc
@@ -96,6 +96,12 @@ static const BuiltinAttrDefinition __definitions[]
      {Attrs::TARGET_FEATURE, CODE_GENERATION},
      // From now on, these are reserved by the compiler and gated through
      // #![feature(rustc_attrs)]
+     {Attrs::FEATURE, STATIC_ANALYSIS},
+     {Attrs::NO_CORE, CODE_GENERATION},
+     {Attrs::DOC, EXTERNAL},
+     {Attrs::CRATE_NAME, CODE_GENERATION},
+     {Attrs::CRATE_TYPE, CODE_GENERATION},
+     {Attrs::MAY_DANGLE, STATIC_ANALYSIS},
      {Attrs::RUSTC_DEPRECATED, STATIC_ANALYSIS},
      {Attrs::RUSTC_INHERIT_OVERFLOW_CHECKS, CODE_GENERATION},
      {Attrs::STABLE, STATIC_ANALYSIS},
-- 
2.50.1