Fix locations in intermediate statements

[Lipen]

This PR fixes some spurious locations mismatches by extracting the recursive calls (such as EtsAssignStmt(location = loc(), lhv = <recurse>, rhv = <recurse>)) with ensureOneAddress inside them. Without extracting these sub-expressions, loc() produces a location that might be "reused" by another loc() call inside ensureOneAddress (which creates extra assignment statement for complex expressions, thus allocates and fills a location). The proper way of doing it is to ensure that lhv and rhv are computed (and all necessary extra statements are already created and put inside currentStmts) before calling loc() for the newly created statement.
In fact, not all extractions that were made in this PR are strictly necessary for the correctness, but I just made the code changes uniform and consistent.

[github-actions]

Lifecycle test results

78 tests  ±0   78 ✅ ±0   1m 54s ⏱️ -2s
 7 suites ±0    0 💤 ±0 
 7 files   ±0    0 ❌ ±0 

Results for commit bfd8e76. ± Comparison against base commit 00164e3.

[github-actions]

Test results on JDK 19

   83 files  ±0     83 suites  ±0   25m 40s ⏱️ -4s
2 511 tests ±0  2 469 ✅ ±0  42 💤 ±0  0 ❌ ±0 
2 539 runs  ±0  2 497 ✅ ±0  42 💤 ±0  0 ❌ ±0 

Results for commit bfd8e76. ± Comparison against base commit 00164e3.

[codecov]

Codecov Report

Attention: Patch coverage is 74.35897% with 10 lines in your changes missing coverage. Please review.

Project coverage is 59.55%. Comparing base (00164e3) to head (bfd8e76).

Files	Patch %	Lines
...-ets/src/main/kotlin/org/jacodb/ets/dto/Convert.kt	74.35%	8 Missing and 2 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                neo     #253      +/-   ##
============================================
+ Coverage     59.53%   59.55%   +0.01%     
  Complexity     2238     2238              
============================================
  Files           309      309              
  Lines         18297    18313      +16     
  Branches       3261     3261              
============================================
+ Hits          10894    10906      +12     
- Misses         6329     6333       +4     
  Partials       1074     1074              

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[github-actions]

Test results on JDK 11

   83 files  ±0     83 suites  ±0   29m 28s ⏱️ +6s
2 511 tests ±0  2 471 ✅ ±0  40 💤 ±0  0 ❌ ±0 
2 539 runs  ±0  2 499 ✅ ±0  40 💤 ±0  0 ❌ ±0 

Results for commit bfd8e76. ± Comparison against base commit 00164e3.

[github-actions]

Test results on JDK 8

   83 files  ±0     83 suites  ±0   33m 32s ⏱️ + 4m 31s
2 511 tests ±0  2 466 ✅ ±0  45 💤 ±0  0 ❌ ±0 
2 539 runs  ±0  2 494 ✅ ±0  45 💤 ±0  0 ❌ ±0 

Results for commit bfd8e76. ± Comparison against base commit 00164e3.

[CaelmBleidd]

LGTM