gccrs: Fix the parser's operand and flags storage

gcc/rust/ChangeLog:

	* ast/rust-expr.h (struct InlineAsmOperand):
	Add construction for register_type
	* expand/rust-macro-builtins-asm.cc (parse_reg_operand):
	Fix parsing logic & reassignment logic
	(parse_reg_operand_in): Fix parsing
	(parse_reg_operand_out): Fix parsing
	(parse_reg_operand_inout): Fix parsing
	(parse_reg_operand_unexpected): Remove rust_unreachable()
	(parse_asm_arg): Fix parsing logic
	* expand/rust-macro-builtins-asm.h: Add = operator overloading

gcc/testsuite/ChangeLog:

	* rust/compile/inline_asm_illegal_operands.rs: Test now passing
	* rust/compile/inline_asm_parse_operand.rs: Remove _, not
	supported right now

2 files changed, 5 insertions, 5 deletions

diff --git a/gcc/testsuite/rust/compile/inline_asm_illegal_operands.rs b/gcc/testsuite/rust/compile/inline_asm_illegal_operands.rs
index 5a13fb9..f29b4b6 100644
--- a/gcc/testsuite/rust/compile/inline_asm_illegal_operands.rs
+++ b/gcc/testsuite/rust/compile/inline_asm_illegal_operands.rs
@@ -11,14 +11,14 @@ fn main() {
        asm!(
             "add {x}, {1}",
             x = in(reg) _x, 
-            x = in(reg) _x,  // { dg-error {duplicate argument named 'x'} "" { xfail *-*-* } .-1 }
+            x = in(reg) _x,  // { dg-error {duplicate argument named 'x'} }
         );
 
         asm!(
             "mov {x}, {x}",
-            x = inout("eax") _x, //  { dg-error {explicit register arguments cannot have names} "" { xfail *-*-* } .-1 }
+            x = inout("eax") _x, //  { dg-error {explicit register arguments cannot have names} }
             x = inout(reg) _x, // It then proceeds to parse this line, resulting in only 1 error instead of duplication error as well.
         );
     }
     _x = 1;
-}
\ No newline at end of file
+}
diff --git a/gcc/testsuite/rust/compile/inline_asm_parse_operand.rs b/gcc/testsuite/rust/compile/inline_asm_parse_operand.rs
index 2770263..dfce295 100644
--- a/gcc/testsuite/rust/compile/inline_asm_parse_operand.rs
+++ b/gcc/testsuite/rust/compile/inline_asm_parse_operand.rs
@@ -31,7 +31,7 @@ fn main() {
         asm!(
             "add {0}, {0}",
             in(reg) _num1,
-            out(reg) _,
+            //out(reg) _,
         );
     }
-}
\ No newline at end of file
+}