Fixing issue 2633, buffer overflow during gson parsing throws off origin tracker

[jurgenvinju]

This is still an intermediate step for fixing issue #2633 where we disable origin tracking and also accurate error messages for now.

• initial tests which trigger the bug on Windows files
• fix for parseJSON with originTracking enabled creates broken offset/length information if the input exceeds 1024 characters #2633 is included, but it does not solve all possible problems caused by the buffering/reset of the pos
• trackOrigins parameter was not fully respected, you would always get |unknown:///| origins anyway
• very long string constant issue, solved
• refactoring JsonValueReader with better names and better method encapsulation for the origin tracking aspect
• disabled origin tracking and accurate error messages temporarily

For the next PR:

• stable fix and validation of offsets and lengths
• validation of line, column numbers (start is internal, end is external bound for columns)
• test which also triggers parseJSON with originTracking enabled creates broken offset/length information if the input exceeds 1024 characters #2633 on unix systems

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

❌ Patch coverage is 62.33766% with 29 lines in your changes missing coverage. Please review.
✅ Project coverage is 46%. Comparing base (f535ec3) to head (00c7d9f).
⚠️ Report is 7 commits behind head on main.

Files with missing lines	Patch %	Lines
...pl/library/lang/json/internal/JsonValueReader.java	60%	22 Missing and 7 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##              main   #2638   +/-   ##
=======================================
  Coverage       46%     46%           
- Complexity    6666    6670    +4     
=======================================
  Files          795     795           
  Lines        65856   65878   +22     
  Branches      9871    9870    -1     
=======================================
+ Hits         30658   30682   +24     
+ Misses       32832   32822   -10     
- Partials      2366    2374    +8     

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