fix source code annotation for sqrt

[charles-cooper]

the parse_body call in generate_inline_function attaches incorrect
position info into the generated code.

What I did

fix #2676

How I did it

How to verify it

check that a contract with sqrt in it compiles with brownie

Description for the changelog

Cute Animal Picture

[codecov-commenter]

Codecov Report

Merging #2691 (e288332) into master (ce6c5d7) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #2691   +/-   ##
=======================================
  Coverage   87.26%   87.27%           
=======================================
  Files          93       93           
  Lines        9902     9907    +5     
  Branches     2470     2471    +1     
=======================================
+ Hits         8641     8646    +5     
  Misses        777      777           
  Partials      484      484           

Impacted Files	Coverage Δ
vyper/builtin_functions/utils.py	100.00% <100.00%> (ø)

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