block->block_id() <= max_block_id violations

[aartbik]

The new graph checker fails as

../../runtime/vm/compiler/backend/flow_graph_checker.cc: 67: error: expected: block->block_id() <= max_block_id

for a larger number of tests in vm-dartkb-linux-debug-x64.

For now, I just disabled the test. But investigate why this happens and who is right.

[aartbik]

For example:

python tools/test.py -n dartkb-mixed-linux-debug-x64 language_2/vm/mult_int_test

--- Command "vm" (took 699ms):
DART_CONFIGURATION=DebugX64 out/DebugX64/dart --no_background_compilation --optimization_counter_threshold=10 --enable_interpreter --ignore-unrecognized-flags --packages=/b/s/w/ir/.packages /b/s/w/ir/out/DebugX64/generated_compilations/dartkb/tests_language_2_vm_mult_int_test/out.dill

exit code:
-6

stderr:
../../runtime/vm/compiler/backend/flow_graph_checker.cc: 67: error: expected: block->block_id() <= max_block_id

[aartbik]

@alexmarkov @crelier I can't reproduce this locally at all; since this is rather interpreter-heavy, any pointers on how to debug this (note that one needs to revert the workaround mentioned above).