clayborg wrote:

> I merged your fix and a few follow ups to get it all to compile. Now we have 
> 2 failures on Windows: 
> https://lab.llvm.org/buildbot/#/builders/219/builds/7554/steps/6/logs/stdio
> 
> ```
> Failed Tests (2):
>   lldb-api :: lang/cpp/unique-types4/TestUniqueTypes4.py
>   lldb-unit :: 
> SymbolFile/PDB/./SymbolFilePDBTests.exe/SymbolFilePDBTests/TestMaxMatches
> ```
For TestUniqueTypes4.py, it is failing with a expression error, probably 
because a type lookup failed where it used to succeed.

TestMaxMatches will need to be debugged a bit. It used to find all of the types 
first, and then try to find a max of 1 through 10 types after that. Now with 
type queries, you get only one or all types (no one was using a max value for 
types other than 1 or all before). I did my best to try and code it up, but I 
have no ability to run the test to verify it works or debug it. Any help here 
would be appreciated. I do two type queries in the test where I grab all types 
and we expect more than one match, and then one where we try to find just one 
and then verify we got only one from the type map.


> 
> Which I can look into but not today.
> 
> Is it expected that results would change here? Seems like a refactor but I 
> don't have much context.

Yeah, I don't have the ability yet to debug on windows. I am working on getting 
a VM based solution running now.

The new function `SymbolFilePDB::FindTypes(...)` that replaces the old one 
needs to be debugged. I took a guess at what would work, but not sure I got it 
right. Any help debugging this would be very much appreciated. This patch is a 
HUGE perf win, so it is worth making sure we can keep this in and making it 
work. If we need to expected fail the python test on window until we can look 
into it, I would vote to do this. And also fixing TextMaxMatches by commenting 
out this test for now until we can debug it would be a good option. With the 
supposition that we get this fixed within a week for both.

https://github.com/llvm/llvm-project/pull/74786
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