test: OPENROAD_HIERARCHICAL=1 on mock-array power test

[oharboe]

No description provided.

[oharboe]

@jhkim-pii @maliberty Should reproduce #8142

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[oharboe]

Lots of warnings to investigate...

[2025-08-29T00:49:56.357Z] (00:49:53) INFO: From [Verilator] Compiling @@//test/orfs/mock-array:array_verilator:
[2025-08-29T00:49:56.357Z] stderr (/root/.cache/bazel/_bazel_root/e60b8661e582bb05b4aaf2262af88401/execroot/_main/bazel-out/_tmp/actions/stderr-17960) 3050604 exceeds maximum size of --experimental_ui_max_stdouterr_bytes=1048576 bytes; skipping

Investigate which warnings to disable and whether to switch to -Werror:

OpenROAD/test/orfs/mock-array/BUILD

Lines 292 to 309 in 32ce8f2

	verilator_cc_library(
	name = "array_verilator",
	copts = [
	# Don't care about warnings from Verilator generated C++
	"-Wno-unused-variable",
	],
	module = ":array",
	module_top = "MockArray",
	trace = True,
	vopts = [
	"--timescale 1ps/1ps",
	"-Wall",
	"-Wno-DECLFILENAME",
	"-Wno-UNUSEDSIGNAL",
	"-Wno-PINMISSING",
	"--trace-underscore",
	],
	)

[oharboe]

@jhkim-pii FYI I'll revisit/reopen after some more -hier fixes land.

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[oharboe]

@maliberty @jhkim-pii Verilator didn't find anything more than is already reported in issues. Good to go.

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[oharboe]

@maliberty Unrelated CI error:

Found unhandled java.io.IOException exception:
Failed to run image 'openroad/ubuntu22.04-dev:895789'. Error: Unable to find image 'openroad/ubuntu22.04-dev:895789' locally
895789: Pulling from openroad/ubuntu22.04-dev
3