Harnesses with overlapping substrings result in multiple harness being run

[jaisnan]

The changes to model-checking/kani#2202 change how kani x.rs --harness "y" output looks like, and now it returns a fuzzy result, the extension needs to search for the exact harness.

For example,

if there are two functions

fn function_1() {
...
}

fn function_11() {
...
}

the extension queries the output from kani for both the harnesses with the command kani x.rs --harness function_1

[jaisnan]

If there's no way to run a single harness without ensuring that only that harness is run, maybe we could throw a warning to rename the harness to something unique (could modify the function ourselves before running the query).

[celinval]

That's a good point. Can you see how the rust vscode plugin handle that?

[jaisnan]

#56 is related to this issue.