Adds better error messages for unparsable babel files:

[orta]

I've had vscode-graphql be un-usable for a few days because I have no idea which file is doing this on load:

[Info  - 4:06:51 PM] Connection to server got closed. Server will restart.
[Info  - 4:06:51 PM] The graphql server has stopped running
[Info  - 4:06:51 PM] The graphql server has stopped running
2/16/2022, 4:06:51 PM [3] (pid: 57218) graphql-language-service-usage-logs: {"type":"usage","messageType":"initialize"}
/Users/ortatherox/.vscode-insiders/extensions/graphql.vscode-graphql-0.3.50/out/server/server.js:99551
        const err = new SyntaxError(message);
                    ^

SyntaxError: Unexpected token, expected "," (21:7)
    at Object._raise (/Users/ortatherox/.vscode-insiders/extensions/graphql.vscode-graphql-0.3.50/out/server/server.js:99551:21)
    at Object.raiseWithData (/Users/ortatherox/.vscode-insiders/extensions/graphql.vscode-graphql-0.3.50/out/server/server.js:99545:21)
    at Object.raise (/Users/ortatherox/.vscode-insiders/extensions/graphql.vscode-graphql-0.3.50/out/server/server.js:99512:21)
    at Object.unexpected (/Users/ortatherox/.vscode-insiders/extensions/graphql.vscode-graphql-0.3.50/out/server/server.js:102147:20)
    at Object.expect (/Users/ortatherox/.vscode-insiders/extensions/graphql.vscode-graphql-0.3.50/out/server/server.js:102124:32)
    at Object.parseObjectLike (/Users/ortatherox/.vscode-insiders/extensions/graphql.vscode-graphql-0.3.50/out/server/server.js:109414:18)
    at Object.parseExprAtom (/Users/ortatherox/.vscode-insiders/extensions/graphql.vscode-graphql-0.3.50/out/server/server.js:108971:25)
    at Object.parseExprAtom (/Users/ortatherox/.vscode-insiders/extensions/graphql.vscode-graphql-0.3.50/out/server/server.js:105392:24)
    at Object.parseExprSubscripts (/Users/ortatherox/.vscode-insiders/extensions/graphql.vscode-graphql-0.3.50/out/server/server.js:108718:27)
    at Object.parseUpdate (/Users/ortatherox/.vscode-insiders/extensions/graphql.vscode-graphql-0.3.50/out/server/server.js:108700:25) {
  loc: Position { line: 21, column: 7 },
  pos: 716,
  code: 'BABEL_PARSER_SYNTAX_ERROR',
  reasonCode: 'UnexpectedToken'
}
[Error - 4:06:51 PM] Connection to server got closed. Server will not be restarted.
[Info  - 4:06:51 PM] The graphql server has stopped running

Now it would load up, give a few logger error messages and not throw 👍🏻

[changeset-bot]

⚠️ No Changeset found

Latest commit: 35a08a5

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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[codecov]

Codecov Report

Merging #2175 (35a08a5) into main (2d91916) will decrease coverage by 0.85%.
The diff coverage is 77.98%.

@@            Coverage Diff             @@
##             main    #2175      +/-   ##
==========================================
- Coverage   65.70%   64.85%   -0.86%     
==========================================
  Files          85       77       -8     
  Lines        5106     5195      +89     
  Branches     1631     1658      +27     
==========================================
+ Hits         3355     3369      +14     
- Misses       1747     1822      +75     
  Partials        4        4              

Impacted Files	Coverage Δ
packages/codemirror-graphql/src/hint.ts	94.73% <ø> (ø)
packages/codemirror-graphql/src/lint.ts	100.00% <ø> (ø)
packages/codemirror-graphql/src/results/mode.ts	47.05% <ø> (ø)
...kages/codemirror-graphql/src/utils/forEachState.ts	100.00% <ø> (ø)
...ckages/codemirror-graphql/src/utils/mode-indent.ts	0.00% <0.00%> (ø)
packages/codemirror-graphql/src/variables/hint.ts	89.70% <ø> (ø)
packages/codemirror-graphql/src/variables/mode.ts	79.48% <ø> (ø)
packages/graphiql/src/components/QueryEditor.tsx	63.96% <ø> (ø)
packages/graphiql/src/utility/fillLeafs.ts	5.33% <ø> (ø)
...kages/graphiql/src/utility/introspectionQueries.ts	100.00% <ø> (ø)
... and 56 more

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