gdb: Convert language la_is_string_type_p field to a method

This commit changes the language_data::la_is_string_type_p function
pointer member variable into a member function of language_defn.

There should be no user visible changes after this commit.

gdb/ChangeLog:

	* ada-lang.c (ada_language_data): Delete la_is_string_type_p
	initializer.
	(ada_language::is_string_type_p): New member function.
	* c-lang.c (c_language_data): Delete la_is_string_type_p
	initializer.
	(cplus_language_data): Likewise.
	(asm_language_data): Likewise.
	(minimal_language_data): Likewise.
	* d-lang.c (d_language_data): Likewise.
	* f-lang.c (f_is_string_type_p): Delete function, implementation
	moved to f_language::is_string_type_p.
	(f_language_data): Delete la_is_string_type_p initializer.
	(f_language::is_string_type_p): New member function,
	implementation from f_is_string_type_p.
	* go-lang.c (go_is_string_type_p): Delete function, implementation
	moved to go_language::is_string_type_p.
	(go_language_data): Delete la_is_string_type_p initializer.
	(go_language::is_string_type_p): New member function,
	implementation from go_is_string_type_p.
	* language.c (language_defn::is_string_type_p): Define new member
	function.
	(default_is_string_type_p): Make static, add comment copied from
	header file.
	(unknown_language_data): Delete la_is_string_type_p initializer.
	(unknown_language::is_string_type_p): New member function.
	(auto_language_data): Delete la_is_string_type_p initializer.
	(auto_language::is_string_type_p): New member function.
	* language.h (language_data): Delete la_is_string_type_p field.
	(language_defn::is_string_type_p): Declare new function.
	(default_is_string_type_p): Delete desclaration, move comment to
	definition.
	* m2-lang.c (m2_is_string_type_p): Delete function, implementation
	moved to m2_language::is_string_type_p.
	(m2_language_data): Delete la_is_string_type_p initializer.
	(m2_language::is_string_type_p): New member function,
	implementation from m2_is_string_type_p.
	* objc-lang.c (objc_language_data): Delete la_is_string_type_p
	initializer.
	* opencl-lang.c (opencl_language_data): Likewise.
	* p-lang.c (pascal_is_string_type_p): Delete function,
	implementation moved to pascal_language::is_string_type_p.
	(pascal_language_data): Delete la_is_string_type_p initializer.
	(pascal_language::is_string_type_p): New member function,
	implementation from pascal_is_string_type_p.
	* rust-lang.c (rust_is_string_type_p): Delete function,
	implementation moved to rust_language::is_string_type_p.
	(rust_language_data): Delete la_is_string_type_p initializer.
	(rust_language::is_string_type_p): New member function,
	implementation from rust_is_string_type_p.
	* valprint.c (val_print_scalar_or_string_type_p): Update call to
	is_string_type_p.

1 files changed, 10 insertions, 12 deletions

diff --git a/gdb/f-lang.c b/gdb/f-lang.c
index 946d5bc..58b41d1 100644
--- a/gdb/f-lang.c
+++ b/gdb/f-lang.c
@@ -291,17 +291,6 @@ evaluate_subexp_f (struct type *expect_type, struct expression *exp,
   return nullptr;
 }
 
-/* Return true if TYPE is a string.  */
-
-static bool
-f_is_string_type_p (struct type *type)
-{
-  type = check_typedef (type);
-  return (type->code () == TYPE_CODE_STRING
-	  || (type->code () == TYPE_CODE_ARRAY
-	      && TYPE_TARGET_TYPE (type)->code () == TYPE_CODE_CHAR));
-}
-
 /* Special expression lengths for Fortran.  */
 
 static void
@@ -519,7 +508,6 @@ extern const struct language_data f_language_data =
   0,				/* arrays are first-class (not c-style) */
   1,				/* String lower bound */
   &default_varobj_ops,
-  f_is_string_type_p,
   "(...)"			/* la_struct_too_deep_ellipsis */
 };
 
@@ -709,6 +697,16 @@ public:
     f_print_typedef (type, new_symbol, stream);
   }
 
+  /* See language.h.  */
+
+  bool is_string_type_p (struct type *type) const override
+  {
+    type = check_typedef (type);
+    return (type->code () == TYPE_CODE_STRING
+	    || (type->code () == TYPE_CODE_ARRAY
+		&& TYPE_TARGET_TYPE (type)->code () == TYPE_CODE_CHAR));
+  }
+
 protected:
 
   /* See language.h.  */