* Fix two bugs found by deja-gnu. One is the incorrect reporting

    * Fix two bugs found by deja-gnu.  One is the incorrect reporting
	of the PC being in a stack dummy when looking at a core file
	without symbols.  The other is the incorrect passing of char
	arguments during expression evaluation (ie: p foo('a','b') would
	mess up the passing of it's args because it wasn't coercing the
	char's to ints).
	* hppah-tdep.c:  Rename global functions to have consistent hppa_
	prefix.  Make more functions static.  Drop hp_ prefix from static
	functions.  (hppa_push_arguments):  Call value_arg_coerce to cast
	char to int args if necessary.  (hppa_fix_call_dummy):  Create
	this routine from FIX_CALL_DUMMY macro in tm-hppa.h.
	* inferior.h (PC_IN_CALL_DUMMY):  Check for frame_address being
	valid (ie: != 0) before doing comparison against PC.
	* valops.c (call_function_by_hand):  Adjust call to FIX_CALL_DUMMY
	to reflect new arguments.
	* config/pa/tm-hppa.h (POP_FRAME, PUSH_ARGUMENTS):  Use new hppa_
	prefix for func	name.  (FIX_CALL_DUMMY):  Move code into
	hppah-tdep.c.

	* testsuite/gdb.t16/gdbme.c, testsuite/gdb.t17/gdbme.c:  Add calls
	to malloc() so that we can test GDB eval of dynamically created
	arrays (like char strings in `print "foo"').