tests: activate misspelled gdb-check in function-arg-initialization.rs

[Enselic]

In 9253e12 a bunch of gdbr-check (for rust-gdb) directives and gdbg-check (for plain gdb) directives were added. But in two places the author accidentally wrote gdbt-check instead (t is next to r on the keyboard). And no one noticed (and cared) for 9 years. This commit fixes that typo.

#129218 later renamed gdbr-check to just gdb-check which is why we rename to gdb-check directly.

The test still passes locally for me after the change, but fails if I change the gdb-check checks to check for some other string, so the check seems to still perform its intended function.

After this there are no more instances of the string gdbt in the code base:

$ git grep gdbt

[rustbot]

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[rust-log-analyzer]

The job aarch64-gnu-llvm-20-1 failed! Check out the build log: (web) (plain enhanced) (plain)

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---- [debuginfo-gdb] tests/debuginfo/function-arg-initialization.rs stdout ----
NOTE: compiletest thinks it is using GDB version 16003000

error: check directive(s) from `/checkout/tests/debuginfo/function-arg-initialization.rs` not found in debugger output. errors:
    (function-arg-initialization.rs:30) `$4 = function_arg_initialization::BigStruct {a: 3, b: 4, c: 5, d: 6, e: 7, f: 8, g: 9, h: 10}`
    (function-arg-initialization.rs:32) `$5 = function_arg_initialization::BigStruct {a: 11, b: 12, c: 13, d: 14, e: 15, f: 16, g: 17, h: 18}`
the following subset of check directive(s) was found successfully:
    (function-arg-initialization.rs:21) `$1 = 1`
    (function-arg-initialization.rs:23) `$2 = true`
    (function-arg-initialization.rs:25) `$3 = 2.5`
    (function-arg-initialization.rs:37) `$6 = 19`
    (function-arg-initialization.rs:39) `$7 = 20`
    (function-arg-initialization.rs:41) `$8 = 21.5`
    (function-arg-initialization.rs:46) `$9 = 22`
    (function-arg-initialization.rs:48) `$10 = 23`
    (function-arg-initialization.rs:50) `$11 = 24.5`
    (function-arg-initialization.rs:55) `$12 = 25`
    (function-arg-initialization.rs:57) `$13 = 26`
    (function-arg-initialization.rs:59) `$14 = 27.5`
    (function-arg-initialization.rs:64) `$15 = 28`
    (function-arg-initialization.rs:66) `$16 = 29`
    (function-arg-initialization.rs:68) `$17 = 30.5`
    (function-arg-initialization.rs:73) `$18 = 31`
    (function-arg-initialization.rs:75) `$19 = 32`
    (function-arg-initialization.rs:77) `$20 = 33.5`
    (function-arg-initialization.rs:82) `$21 = 34`
    (function-arg-initialization.rs:84) `$22 = 35`
    (function-arg-initialization.rs:86) `$23 = 36.5`
    (function-arg-initialization.rs:91) `$24 = 37`
    (function-arg-initialization.rs:93) `$25 = 38`
    (function-arg-initialization.rs:95) `$26 = 39.5`
    (function-arg-initialization.rs:100) `$27 = 40`
    (function-arg-initialization.rs:102) `$28 = 41`
    (function-arg-initialization.rs:104) `$29 = 42`
    (function-arg-initialization.rs:109) `$30 = 43`
    (function-arg-initialization.rs:111) `$31 = 44`
    (function-arg-initialization.rs:113) `$32 = 45`
status: exit status: 0
command: PYTHONPATH="/checkout/src/etc" "/usr/bin/gdb" "-quiet" "-batch" "-nx" "-command=/checkout/obj/build/aarch64-unknown-linux-gnu/test/debuginfo/function-arg-initialization.gdb/function-arg-initialization.debugger.script"
--- stdout -------------------------------
GNU gdb (Ubuntu 16.3-1ubuntu2) 16.3
Copyright (C) 2024 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "aarch64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word".
To enable execution of this file add
 add-auto-load-safe-path /checkout/src/etc/gdb_load_rust_pretty_printers.py
line to your configuration file "/home/user/.config/gdb/gdbinit".
To completely disable this security protection add
 set auto-load safe-path /
line to your configuration file "/home/user/.config/gdb/gdbinit".
For more information about this security protection see the
"Auto-loading safe path" section in the GDB manual.  E.g., run from the shell:
 info "(gdb)Auto-loading safe path"
Breakpoint 1 at 0xc7c: file /checkout/tests/debuginfo/function-arg-initialization.rs, line 222.
Breakpoint 2 at 0xcdc: file /checkout/tests/debuginfo/function-arg-initialization.rs, line 237.
Breakpoint 3 at 0xed8: file /checkout/tests/debuginfo/function-arg-initialization.rs, line 241.
Breakpoint 4 at 0xb40: file /checkout/tests/debuginfo/function-arg-initialization.rs, line 246.
Breakpoint 5 at 0xc54: file /checkout/tests/debuginfo/function-arg-initialization.rs, line 251.
Breakpoint 6 at 0xb7c: file /checkout/tests/debuginfo/function-arg-initialization.rs, line 256.
Breakpoint 7 at 0xc34: file /checkout/tests/debuginfo/function-arg-initialization.rs, line 260.
Breakpoint 8 at 0xca4: file /checkout/tests/debuginfo/function-arg-initialization.rs, line 263.
Breakpoint 9 at 0xf24: file /checkout/tests/debuginfo/function-arg-initialization.rs, line 267.
Breakpoint 10 at 0xba4: file /checkout/tests/debuginfo/function-arg-initialization.rs, line 275.
Breakpoint 11 at 0xfa4: file /checkout/tests/debuginfo/function-arg-initialization.rs, line 283.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/aarch64-linux-gnu/libthread_db.so.1".

Breakpoint 1, function_arg_initialization::immediate_args (a=1, b=true, c=2.5) at /checkout/tests/debuginfo/function-arg-initialization.rs:222
222     zzz(); // #break
$1 = 1
$2 = true
$3 = 2.5

Breakpoint 2, function_arg_initialization::non_immediate_args (a=..., b=...) at /checkout/tests/debuginfo/function-arg-initialization.rs:237
237     zzz(); // #break
$4 = <optimized out>
$5 = <optimized out>

Breakpoint 3, function_arg_initialization::binding (a=19, b=20, c=21.5) at /checkout/tests/debuginfo/function-arg-initialization.rs:241
241     let x = 0; // #break
$6 = 19
$7 = 20
$8 = 21.5


Breakpoint 4, function_arg_initialization::assignment (a=22, b=23, c=24.5) at /checkout/tests/debuginfo/function-arg-initialization.rs:246
246     a = b; // #break
$9 = 22
$10 = 23
$11 = 24.5


Breakpoint 5, function_arg_initialization::function_call (x=25, y=26, z=27.5) at /checkout/tests/debuginfo/function-arg-initialization.rs:251
251     zzz(); // #break
$12 = 25
$13 = 26
$14 = 27.5

Breakpoint 6, function_arg_initialization::identifier (x=28, y=29, z=30.5) at /checkout/tests/debuginfo/function-arg-initialization.rs:256
256 }
$15 = 28
$16 = 29
$17 = 30.5

Breakpoint 7, function_arg_initialization::return_expr (x=31, y=32, z=33.5) at /checkout/tests/debuginfo/function-arg-initialization.rs:260
260 }
$18 = 31
$19 = 32
$20 = 33.5

Breakpoint 8, function_arg_initialization::arithmetic_expr (x=34, y=35, z=36.5) at /checkout/tests/debuginfo/function-arg-initialization.rs:263
263     x + y // #break
$21 = 34
$22 = 35
$23 = 36.5

Breakpoint 9, function_arg_initialization::if_expr (x=37, y=38, z=39.5) at /checkout/tests/debuginfo/function-arg-initialization.rs:267
267     if x + y < 1000 { // #break
$24 = 37
$25 = 38
$26 = 39.5

Breakpoint 10, function_arg_initialization::while_expr (x=40, y=41, z=42) at /checkout/tests/debuginfo/function-arg-initialization.rs:275
275     while x + y > 1000 { // #break
$27 = 40
$28 = 41
$29 = 42

Breakpoint 11, function_arg_initialization::loop_expr (x=43, y=44, z=45) at /checkout/tests/debuginfo/function-arg-initialization.rs:283
283         x += z; // #break
$30 = 43
$31 = 44
$32 = 45

Breakpoint 11, function_arg_initialization::loop_expr (x=88, y=44, z=45) at /checkout/tests/debuginfo/function-arg-initialization.rs:283
283         x += z; // #break
A debugging session is active.

 Inferior 1 [process 232948] will be killed.

Quit anyway? (y or n) [answered Y; input not from terminal]
------------------------------------------
--- stderr -------------------------------
warning: File "/checkout/src/etc/gdb_load_rust_pretty_printers.py" auto-loading has been declined by your `auto-load safe-path' set to "$debugdir:$datadir/auto-load".
------------------------------------------

---- [debuginfo-gdb] tests/debuginfo/function-arg-initialization.rs stdout end ----

failures: