hang in rd_name_alloc when entering long arguments for target

[rdunnington]

This was using the latest release build (v0.9.14-alpha).

Repro steps

1. Add a target for any executable (in my case it was zig.exe).
2. Set the following string as the arguments:

E:\Dev\third_party\zig\build\stage4\bin\zig.exe build-obj -cflags -IE:\dev\handmade\orca\src -isystem E:\dev\handmade\orca\src\orca-libc\src\include -isystem E:\dev\handmade\orca\src\orca-libc\src\include\private -IE:\dev\handmade\orca\src\orca-libc\src\arch -IE:\dev\handmade\orca\src\orca-libc\src\internal -Wall -Wextra -Werror -Wno-null-pointer-arithmetic -Wno-unused-parameter -Wno-sign-compare -Wno-unused-variable -Wno-unused-function -Wno-ignored-attributes -Wno-missing-braces -Wno-ignored-pragmas -Wno-unused-but-set-variable -Wno-unknown-warning-option -Wno-parentheses -Wno-shift-op-parentheses -Wno-bitwise-op-parentheses -Wno-logical-op-parentheses -Wno-string-plus-int -Wno-dangling-else -Wno-unknown-pragmas -D__ORCA__ -DBULK_MEMORY_THRESHOLD=32 --std=c11 -- E:\dev\handmade\orca\src\orca-libc\src\math\cbrtf.c -fsingle-threaded -OReleaseSmall -target wasm32-freestanding -mcpu baseline+bulk_memory+nontrapping_fptoint -Mroot --cache-dir E:\dev\handmade\orca\.zig-cache --global-cache-dir C:\Users\Reuben\AppData\Local\zig --name libc_math_cbrtf.c --zig-lib-dir E:\dev\handmade\orca\src\orca-libc

3. Observe hang
4. Observe that the full arguments don't seem to be pasted into the text input box

I managed to grab the site of the hanging callstack as well:

raddbg.exe;String8  rd_name_alloc(
   String8  string = { ... }) Ln 1274;7FF6D10C3584
raddbg.exe;rd_entity_equip_name();7FF6D109FBC3
raddbg.exe;rd_eval_space_write();7FF6D10A3CF4
raddbg.exe;rd_commit_eval_value_string();7FF6D109D57C
raddbg.exe;rd_watch_view_build();7FF6D10D0E91
raddbg.exe;rd_view_rule_ui_targets();7FF6D0FD2335
raddbg.exe;rd_window_frame();7FF6D11094CC
raddbg.exe;rd_frame();7FF6D10BC0ED
raddbg.exe;entry_point();7FF6D1051DCD
raddbg.exe;w32_entry_point_caller();7FF6D1150ABE
raddbg.exe;wWinMain();7FF6D1150B7D
raddbg.exe;__scrt_common_main_seh();7FF6D1151C92
kernel32.dll;;7FFB0CFD7374
ntdll.dll;;7FFB0D9DCC91

[ryanfleury]

Fixed in bc44f58.