SIGSEGV (no assertion) during parsing of function prototype with excessively macro-expanded parameters

## Compiler Explorer: https://godbolt.org/z/r3fzsPr9s

- clang start crashing on `Trunk`
- generated by fuzzer

## Console
```console
Program terminated with signal: SIGSEGV
Compiler returned: 139
```

## Code
```c

#define PAR1 int, int, int, int, int, int, int, int, int, int
#define PAR2 PAR1, PAR1, PAR1, PAR1, PAR1, PAR1, PAR1, PAR1, PAR1, PAR1
#define PAR3 PAR2, PAR2, PAR2, PAR2, PAR2, PAR2, PAR2, PAR2, PAR2, PAR2
#define PAR4 PAR3, PAR3, PAR3, PAR3, PAR3, PAR3, PAR3, PAR3, PAR3, PAR3
#define PAR5 PAR4, PAR4, PAR4, PAR4, PAR4, PAR4, PAR4, PAR4, PAR4, PAR4
#define PAR6 PAR5, PAR5, PAR5, PAR5, PAR5, PAR5, PAR5, PAR5, PAR5, PAR5

extern void func(PAR4);

#define ARG1 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
#define ARG2 ARG1, ARG1, ARG1, ARG1, ARG1, ARG1, ARG1, ARG1, ARG1, ARG1
#define ARG3 ARG2, ARG2, ARG2, ARG2, ARG2, ARG2, ARG2, ARG2, ARG2, ARG2
#define ARG4 ARG3, ARG3, ARG3, ARG3, ARG3, ARG3, ARG3, ARG3, ARG3, ARG3
#define ARG5 ARG4, ARG4, ARG4, ARG4, ARG4, ARG4, ARG4, ARG4, ARG4, ARG4
#define ARG5HALF ARG5, ARG5, ARG5, ARG5, ARG5

void caller(void) { (ARG4); }
```