Execute a string as an R script and return the environment from that execution.
Converts a string to an AST and executes that script in a dummy environment for running test
cases against. Transforms all expressions of the form . = ottr::check(...) by replacing the .
with an index into a list in the environment with name check_results_{SECRET} to collect the
TestFileResult objects generated from those checks. (This helps to handle variable
name collisions in tests when grading a script.)
execute_script(script, ignore_errors)The global environment after executing the script
The string to be executed
Whether to ignore errors thrown while executing the script