337e07fab6
TEST=pkg/vm_service/test/reload_sources_with_resident_compiler_test.dart and pkg/vm_service/test/breakpoint_resolution_after_reloading_with_resident_compiler_test.dart CoreLibraryReviewExempt: This CL does not include any core library API changes, only VM Service implementation changes within sdk/lib/vmservice/. Change-Id: Ibc99cd37439ddd8aca97fa7e18a5112cbfc3b4cb Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/401646 Reviewed-by: Ben Konyi <bkonyi@google.com>