PR modula2/111085 nexttoward and nexttowardf contain incorrect definitions

The definition for procedures nexttoward and nexttowardf contain
second incorrect parameter and return types.  This bug was
discovered when attempting to resolve PR 108143 and is applied
separately and prior to PR 108143.

gcc/m2/ChangeLog:

	PR modula2/111085
	* gm2-libs/Builtins.def (nexttoward): Alter the second
	parameter to LONGREAL.
	(nexttowardf): Alter the second	parameter to LONGREAL.
	* gm2-libs/Builtins.mod (nexttoward): Alter the second
	parameter to LONGREAL.
	(nexttowardf): Alter the second	parameter to LONGREAL.
	* gm2-libs/cbuiltin.def (nexttoward): Alter the second
	parameter to LONGREAL.
	(nexttowardf): Alter the second	parameter to LONGREAL.

Signed-off-by: Gaius Mulley <gaiusmod2@gmail.com>

gcc/m2/gm2-libs/Builtins.def

@@ -91,8 +91,8 @@ PROCEDURE __BUILTIN__ nextafter (x, y: REAL) : REAL ;
 PROCEDURE __BUILTIN__ nextafterf (x, y: SHORTREAL) : SHORTREAL ;
 PROCEDURE __BUILTIN__ nextafterl (x, y: LONGREAL) : LONGREAL ;
 
-PROCEDURE __BUILTIN__ nexttoward (x, y: REAL) : LONGREAL ;
-PROCEDURE __BUILTIN__ nexttowardf (x, y: SHORTREAL) : LONGREAL ;
+PROCEDURE __BUILTIN__ nexttoward (x: REAL; y: LONGREAL) : REAL ;
+PROCEDURE __BUILTIN__ nexttowardf (x: SHORTREAL; y: LONGREAL) : SHORTREAL ;
 PROCEDURE __BUILTIN__ nexttowardl (x, y: LONGREAL) : LONGREAL ;
 
 PROCEDURE __BUILTIN__ scalbln (x: REAL; n: LONGINT) : REAL ;

gcc/m2/gm2-libs/Builtins.mod

@@ -267,12 +267,12 @@ BEGIN
    RETURN cbuiltin.nextafterl (x, y)
 END nextafterl ;
 
-PROCEDURE __ATTRIBUTE__  __BUILTIN__ ((__builtin_nexttoward)) nexttoward (x, y: REAL) : LONGREAL ;
+PROCEDURE __ATTRIBUTE__  __BUILTIN__ ((__builtin_nexttoward)) nexttoward (x: REAL; y: LONGREAL) : REAL ;
 BEGIN
    RETURN cbuiltin.nexttoward (x, y)
 END nexttoward ;
 
-PROCEDURE __ATTRIBUTE__  __BUILTIN__ ((__builtin_nexttowardf)) nexttowardf (x, y: SHORTREAL) : LONGREAL ;
+PROCEDURE __ATTRIBUTE__  __BUILTIN__ ((__builtin_nexttowardf)) nexttowardf (x: SHORTREAL; y: LONGREAL) : SHORTREAL ;
 BEGIN
    RETURN cbuiltin.nexttowardf (x, y)
 END nexttowardf ;

gcc/m2/gm2-libs/cbuiltin.def

@@ -118,8 +118,8 @@ PROCEDURE nextafter (x, y: REAL) : REAL ;
 PROCEDURE nextafterf (x, y: SHORTREAL) : SHORTREAL ;
 PROCEDURE nextafterl (x, y: LONGREAL) : LONGREAL ;
 
-PROCEDURE nexttoward (x, y: REAL) : REAL ;
-PROCEDURE nexttowardf (x, y: SHORTREAL) : SHORTREAL ;
+PROCEDURE nexttoward (x: REAL; y: LONGREAL) : REAL ;
+PROCEDURE nexttowardf (x: SHORTREAL; y: LONGREAL) : SHORTREAL ;
 PROCEDURE nexttowardl (x, y: LONGREAL) : LONGREAL ;
 
 PROCEDURE scalb (x, n: REAL) : REAL ;