gccrs: Fix visitor-related warnings

gcc/rust/ChangeLog:

	* ast/rust-ast-collector.cc (TokenCollector::visit):
	Fix visitor-related warnings
	* ast/rust-ast-collector.h: Likewise.
	* ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Likewise.
	* ast/rust-ast-visitor.h: Likewise.
	* checks/errors/borrowck/rust-bir-builder-struct.h: Likewise.
	* checks/errors/borrowck/rust-function-collector.h: Likewise.
	* checks/errors/rust-const-checker.cc (ConstChecker::visit): Likewise.
	* checks/errors/rust-const-checker.h: Likewise.
	* expand/rust-derive.h: Likewise.
	* expand/rust-macro-builtins-asm.cc (parse_reg_operand): Likewise.
	* hir/rust-hir-dump.cc (Dump::visit): Likewise.
	* hir/rust-hir-dump.h: Likewise.
	* hir/tree/rust-hir-visitor.h: Likewise.
	* resolve/rust-ast-resolve-base.cc (ResolverBase::visit): Likewise.
	* resolve/rust-ast-resolve-base.h: Likewise.

4 files changed, 15 insertions, 3 deletions

diff --git a/gcc/rust/ast/rust-ast-collector.cc b/gcc/rust/ast/rust-ast-collector.cc
index bc8bc9c..f1d5c8c 100644
--- a/gcc/rust/ast/rust-ast-collector.cc
+++ b/gcc/rust/ast/rust-ast-collector.cc
@@ -18,6 +18,7 @@
 #include "rust-ast-collector.h"
 #include "rust-ast.h"
 #include "rust-diagnostics.h"
+#include "rust-expr.h"
 #include "rust-item.h"
 #include "rust-keyword-values.h"
 #include "rust-token.h"
@@ -1511,6 +1512,10 @@ TokenCollector::visit (AsyncBlockExpr &expr)
   visit (expr.get_block_expr ());
 }
 
+void
+TokenCollector::visit (InlineAsm &expr)
+{}
+
 // rust-item.h
 
 void
diff --git a/gcc/rust/ast/rust-ast-collector.h b/gcc/rust/ast/rust-ast-collector.h
index 7b418bb..b2dc41b 100644
--- a/gcc/rust/ast/rust-ast-collector.h
+++ b/gcc/rust/ast/rust-ast-collector.h
@@ -303,7 +303,7 @@ public:
   void visit (MatchExpr &expr);
   void visit (AwaitExpr &expr);
   void visit (AsyncBlockExpr &expr);
-
+  void visit (InlineAsm &expr);
   // rust-item.h
   void visit (TypeParam &param);
   void visit (LifetimeWhereClauseItem &item);
diff --git a/gcc/rust/ast/rust-ast-visitor.cc b/gcc/rust/ast/rust-ast-visitor.cc
index 2c1674e..c4abf2e 100644
--- a/gcc/rust/ast/rust-ast-visitor.cc
+++ b/gcc/rust/ast/rust-ast-visitor.cc
@@ -663,6 +663,12 @@ DefaultASTVisitor::visit (AST::AsyncBlockExpr &expr)
 }
 
 void
+DefaultASTVisitor::visit (AST::InlineAsm &expr)
+{
+  rust_unreachable ();
+}
+
+void
 DefaultASTVisitor::visit (AST::TypeParam &param)
 {
   visit_outer_attrs (param);
diff --git a/gcc/rust/ast/rust-ast-visitor.h b/gcc/rust/ast/rust-ast-visitor.h
index d91ef3d..2f56d89 100644
--- a/gcc/rust/ast/rust-ast-visitor.h
+++ b/gcc/rust/ast/rust-ast-visitor.h
@@ -23,7 +23,6 @@
 // full include not required - only forward decls
 #include "rust-ast-full-decls.h"
 #include "rust-ast.h"
-#include "rust-expr.h"
 #include "rust-item.h"
 #include "rust-system.h"
 
@@ -129,7 +128,7 @@ public:
   virtual void visit (MatchExpr &expr) = 0;
   virtual void visit (AwaitExpr &expr) = 0;
   virtual void visit (AsyncBlockExpr &expr) = 0;
-  virtual void visit (InlineAsm &expr) { rust_unreachable (); }
+  virtual void visit (InlineAsm &expr) = 0;
 
   // rust-item.h
   virtual void visit (TypeParam &param) = 0;
@@ -313,6 +312,8 @@ protected:
   virtual void visit (AST::MatchExpr &expr) override;
   virtual void visit (AST::AwaitExpr &expr) override;
   virtual void visit (AST::AsyncBlockExpr &expr) override;
+  virtual void visit (InlineAsm &expr) override;
+
   virtual void visit (AST::TypeParam &param) override;
   virtual void visit (AST::LifetimeWhereClauseItem &item) override;
   virtual void visit (AST::TypeBoundWhereClauseItem &item) override;