Ignore allowImportingTsExtensions
in transpileModule to suppress option validation error with noEmit
#53599
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Fixes ~ TypeStrong/ts-loader#1602
Fixes ~ TypeStrong/ts-node#1981
ts.transpileModule
erases any value ofnoEmit
from the incoming compiler options, but still creates a program that does option validation. One validation is thatallowImportingTsExtensions
requiresnoEmit
to be set, so including this option intranspileModule
calls was always an error. The fix is to eraseallowImportingTsExtensions
too—since its only purpose is to silence an error in checker code that doesn‘t run in transpilation, it’s not necessary to include in the first place. It can be completely ignored in transpilation.