make globalGqlIdentifierName case sensitive

[fantastiskm]

Description

Currently globalGqlIdentifierNames are converted to lower case before being used for matching. This patch removes this conversion so they match in the file if the identifier in the code source is not all lower case. Previously if you had a mixed case globalGqlIdentifierName in the source code it would not match.

Eg: const x = testGql( could not be plucked using globalGqlIdentifierName as it is mixed case.

It also re-enables tests

Related # 5944

Type of change

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• Bug fix (non-breaking change which fixes an issue)

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How Has This Been Tested?

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• unit test
• used in own project

Test Environment:

• OS: MacOS
• @graphql-tools/...: master
• NodeJS: 18

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[ardatan]

Why would we make it case insensitive?
Why don't we solve the issue directly? If identifier name is lowercased in somewhere, let's remove that instead.

[fantastiskm]

Totally works for me especially as identifiers are normally case sensitive. I just didn't want to break existing code ;) I've updated the branch