Fix position propagation

[raviqqe]

Close #645.

[codecov-commenter]

Codecov Report

Merging #805 (95914d5) into main (a598620) will decrease coverage by 0.09%.
The diff coverage is 35.71%.

@@            Coverage Diff             @@
##             main     #805      +/-   ##
==========================================
- Coverage   85.41%   85.32%   -0.10%     
==========================================
  Files         317      317              
  Lines       29466    29519      +53     
==========================================
+ Hits        25168    25186      +18     
- Misses       4298     4333      +35     

Impacted Files	Coverage Δ
lib/hir/src/types/boolean.rs	63.63% <0.00%> (-36.37%)	⬇️
lib/hir/src/types/byte_string.rs	36.36% <0.00%> (-20.78%)	⬇️
lib/hir/src/types/function.rs	80.95% <0.00%> (-19.05%)	⬇️
lib/hir/src/types/list.rs	76.47% <0.00%> (-23.53%)	⬇️
lib/hir/src/types/none.rs	63.63% <0.00%> (-36.37%)	⬇️
lib/hir/src/types/reference.rs	76.47% <0.00%> (-23.53%)	⬇️
lib/hir/src/types/union.rs	80.95% <0.00%> (-19.05%)	⬇️
lib/hir/src/types/type_.rs	82.22% <46.15%> (-6.09%)	⬇️
lib/hir/src/analysis/types/type_canonicalizer.rs	99.57% <50.00%> (ø)
lib/hir/src/analysis/types/type_resolver.rs	92.30% <100.00%> (ø)
... and 3 more

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