This change fixes the following problems when parsing DART_VM_OPTIONS
environment variable:
* Resize vm_options to accomodate for extra flags from
DART_VM_OPTIONS.
* Prepend executable name to the argv to be compatible with
implementation of Platform.executableArguments.
* Use strchr instead of strtok_r to avoid modifying value of
DART_VM_OPTIONS environment variable in place.
TEST=pkg/dartdev/test/commands/compile_test.dart
Fixes https://github.com/dart-lang/sdk/issues/62957
Fixes https://github.com/dart-lang/sdk/issues/62958
Change-Id: I86e0ece20844888333b2a0765c82a5ad1fba54b6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/491001
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>
Alexander Markov
b540d7e135