Merge GDB 7.5.1

gdb/testsuite/gdb.base/return.c

 #include <stdio.h>
 /*  Test "return" command.  */
 
 void func1 ()
 {
   printf("in func1\n");
 }
 
 int
 func2 ()
 {
   return -5;
 }
 
 double
 func3 ()
 {
   return -5.0;
 }
 
 int tmp2;
 double tmp3;
 
 int main ()
 {
-#ifdef usestubs
-  set_debug_traps();
-  breakpoint();
-#endif
   func1 ();
   printf("in main after func1\n");
   tmp2 = func2 ();
   tmp3 = func3 ();
   printf("exiting\n");
   return 0;
 }