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67962cb93d
Joining on variable name alone is a bad thing:
```
[2022-01-25 11:13:20] (228s) Tuple counts for Variable::Cached::access#ff#shared/3@868b54tu after 3m37s:
112554 ~0% {3} r1 = JOIN Variable::VariableReal::getNameImpl_dispred#ff WITH Variable::VariableReal::getDeclaringScopeImpl_dispred#ff ON FIRST 1 OUTPUT Lhs.1, Lhs.0 'arg2', Rhs.1 'arg1'
561015756 ~1% {3} r2 = JOIN r1 WITH Variable::variableName#ff_10#join_rhs ON FIRST 1 OUTPUT Rhs.1 'arg0', Lhs.2 'arg1', Lhs.1 'arg2'
return r2
```
This change ensures that we join on name and scope simultaneously.
Ruby analysis support for CodeQL
This directory contains the extractor, CodeQL libraries, and queries that power Ruby support in LGTM and the other CodeQL products that GitHub makes available to its customers worldwide.
It contains two major components:
- static analysis libraries and queries written in CodeQL that can be used to analyze such a database to find coding mistakes or security vulnerabilities.
- an extractor, written in Rust, that parses Ruby source code and converts it into a database that can be queried using CodeQL. See Developer information for information on building the extractor (you do not need to do this if you are only developing queries).