CTF: set up debug info for function arguments

Added this support in read_func_kind_type after gcc started generating
CTF for function arguments.

Replaced XNEW with std::vector and NULL with nullptr.

Expanded gdb.base/ctf-ptype.exp to test function arguments. Also fixed
some typos.

gdb/ChangeLog:

	* ctfread.c (read_func_kind_type): Set up function arguments.

gdb/testsuite/ChangeLog:

	* gdb.base/ctf-ptype.exp: Add function tests and fix typos.

1 files changed, 16 insertions, 3 deletions

diff --git a/gdb/testsuite/gdb.base/ctf-ptype.exp b/gdb/testsuite/gdb.base/ctf-ptype.exp
index ffe40f1..056f712 100644
--- a/gdb/testsuite/gdb.base/ctf-ptype.exp
+++ b/gdb/testsuite/gdb.base/ctf-ptype.exp
@@ -63,10 +63,10 @@ gdb_test "ptype struct t_struct" "type = struct t_struct \{.*\[\r\n\]    (unsign
 
 # Test the equivalence between '.' and '->' for struct member references.
 
-if [gdb_test "ptype v_t_struct_p.v_float_member"	"type = float"]<0 then {
+if [gdb_test "ptype v_struct1.v_float_member"	"type = float"]<0 then {
     return -1
 }
-if [gdb_test "ptype v_t_struct_p->v_float_member"	"type = float"]<0 then {
+if [gdb_test "ptype v_struct1->v_float_member"	"type = float"]<0 then {
     return -1
 }
 if [gdb_test "ptype v_t_struct_p.v_float_member"	"type = float"]<0 then {
@@ -211,7 +211,7 @@ gdb_test "ptype the_highest" \
 
 gdb_test "ptype the_highest.anonymous_level_1" \
          "type = struct \{.*\[\r\n\] *int b;.*\[\r\n\] *struct \{.*\[\r\n\] *int c;.*\[\r\n\] *\} anonymous_level_2;.*\[\r\n\]}.*" \
-         "ptype the_highest"
+         "ptype the_highest.anonymous_level_1"
 
 # Print the type of the identifier ID, and check the response:
 # - Expect to see PROTOTYPED as the type.  PROTOTYPED is not a regular
@@ -255,8 +255,21 @@ proc ptype_maybe_prototyped { id prototyped plain { overprototyped "NO-MATCH" }
     }
 }
 
+ptype_maybe_prototyped "func_type" "int (*)(int (*)(int, float), float)" \
+                                   "int (*)()"
 ptype_maybe_prototyped "old_fptr" "double (*)()" "double (*)()" \
                                   "double (*)(void)"
+ptype_maybe_prototyped "new_fptr" "double (*)()" "double (*)()"
+ptype_maybe_prototyped "fptr" "int (*)(int, float)" "int (*)()"
+ptype_maybe_prototyped "fptr2" "int *(*)(int (*)(int, float), float)" \
+                               "int *(*)()"
+ptype_maybe_prototyped "xptr" "int (*)(int (*)(), int (*)(), int)" \
+                              "int (*)()" \
+                              "int (*)(int (*)(void), int (*)(void), int)"
+ptype_maybe_prototyped "ffptr" "int (*(*)(char))(short int)" \
+                               "int (*(*)())()"
+ptype_maybe_prototyped "fffptr" "int (*(*(*)(char))(short int))(long int)" \
+                                "int (*(*(*)())())()"
 
 # Test printing type of string constants and array constants, but
 # requires a running process.  These call malloc, and can take a long