input.h: convert some macros to inline functions

gcc/ChangeLog:
	* input.h (in_system_header_at): Convert from macro to inline
	function.
	(from_macro_expansion_at): Likewise.
	(from_macro_definition_at): Likewise.

From-SVN: r259727

gcc/ChangeLog

+2018-04-27  David Malcolm  <dmalcolm@redhat.com>
+
+	* input.h (in_system_header_at): Convert from macro to inline
+	function.
+	(from_macro_expansion_at): Likewise.
+	(from_macro_definition_at): Likewise.
+
 2018-04-27  Jeff Law  <law@redhat.com>
 
 	* config.gcc: Mark tile* targets as deprecated/obsolete.

gcc/input.h

@@ -73,17 +73,31 @@ extern location_t input_location;
    Note that this function returns 1 if LOCATION belongs to a token
    that is part of a macro replacement-list defined in a system
    header, but expanded in a non-system file.  */
-#define in_system_header_at(LOC) \
-  (linemap_location_in_system_header_p (line_table, LOC))
-/* Return a positive value if LOCATION is the locus of a token that
-   comes from a macro expansion, O otherwise.  */
-#define from_macro_expansion_at(LOC) \
-  ((linemap_location_from_macro_expansion_p (line_table, LOC)))
-/* Return a positive value if LOCATION is the locus of a token that comes from
-   a macro definition, O otherwise.  This differs from from_macro_expansion_at
+
+static inline int
+in_system_header_at (location_t loc)
+{
+  return linemap_location_in_system_header_p (line_table, loc);
+}
+
+/* Return true if LOCATION is the locus of a token that
+   comes from a macro expansion, false otherwise.  */
+
+static inline bool
+from_macro_expansion_at (location_t loc)
+{
+  return linemap_location_from_macro_expansion_p (line_table, loc);
+}
+
+/* Return true if LOCATION is the locus of a token that comes from
+   a macro definition, false otherwise.  This differs from from_macro_expansion_at
    in its treatment of macro arguments, for which this returns false.  */
-#define from_macro_definition_at(LOC) \
-  ((linemap_location_from_macro_definition_p (line_table, LOC)))
+
+static inline bool
+from_macro_definition_at (location_t loc)
+{
+  return linemap_location_from_macro_definition_p (line_table, loc);
+}
 
 static inline location_t
 get_pure_location (location_t loc)