[compiler-rt] [asan] Make frame number checks more flexable (PR #94307)

[Hau Hsu via llvm-commits]

hau-hsu wrote:

> was that caused by unnecessary check.*.cpp ?

Yes. My bad.

I added `.*.cpp` because I got some FileCheck errors after I apply the `[0-9a-f]+` regex for frame numbers.
Then I thought they were caused by greedy matching of `*`.

For example, without `.*.cpp`, the checks are:
```
CHECK: {{    #[0-9]+ 0x.* in .*strncpy}}
CHECK: {{    #[0-9]+ 0x.* in main .*strncpy-overflow.cpp:}}[[@LINE-3]]
```
I got the error like:
```
error: CHECK: expected string not found in input
 // CHECK: {{#[0-9]+ 0x.* in bad_function.*strcpy-overlap.cpp:}}[[@LINE+2]]
```
I thought the first check (`#[0-9]+ 0x.* in .*strncpy`) matches 2 lines
```
    #0 0x2aaab49acc in strcpy .../asan_interceptors.cpp:554:5
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    #1 0x2aaab98796 in bad_function() .../strcpy-overlap.cpp:42:3
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
```
So I added `.*.cpp` to prevent that.
But it seems that I shouldn't do this, and this is not the root cause of the error.

I'll review the patch and send it again. Sorry about that.

https://github.com/llvm/llvm-project/pull/94307