7b2cfdbc8c
Removes build complexity around which combinations of compiler/architecture/sysroot/libc support tcmalloc, reduces binary size, and reduces memory usage at the expense of some throughput. TEST=ci Bug: https://github.com/dart-lang/sdk/issues/51111 Bug: https://github.com/dart-lang/sdk/issues/51535 Bug: https://github.com/dart-lang/sdk/issues/51639 Change-Id: Id73d5b87e2b16c1cd1e5228ba0cbf1aa2521c01a Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/287001 Reviewed-by: Martin Kustermann <kustermann@google.com> Commit-Queue: Ryan Macnak <rmacnak@google.com>