Revert "Begin process of removing singleton use by StringMatcher (#32…

[phlax]

…829)"

This reverts commit b7818b0.

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[repokitteh-read-only]

CC @envoyproxy/coverage-shephards: FYI only for changes made to (test/per_file_coverage.sh).
envoyproxy/coverage-shephards assignee is @alyssawilk

🐱

Caused by: #32902 was opened by phlax.

see: more, trace.

[phlax]

@ggreenway this seems to have created a permafailing TIMEOUT in the rbac tests (maybe others)

[phlax]

this is the error:

TIMEOUT: @envoy//test/extensions/filters/http/rbac:rbac_filter_integration_test (Summary)
      /build/bazel_root/base/execroot/envoy_filter_example/bazel-out/k8-fastbuild/testlogs/external/envoy/test/extensions/filters/http/rbac/rbac_filter_integration_test/shard_1_of_2/test.log
INFO: From Testing @envoy//test/extensions/filters/http/rbac:rbac_filter_integration_test (shard 1 of 2):
stdout (/build/bazel_root/base/execroot/envoy_filter_example/bazel-out/_tmp/actions/stdout-25444) 1693776 exceeds maximum size of --experimental_ui_max_stdouterr_bytes=1048576 bytes; skipping
INFO: Elapsed time: 2363.025s, Critical Path: 998.12s
INFO: 19385 processes: 6112 remote cache hit, 8517 internal, 4756 remote.
@envoy//test/extensions/filters/http/rbac:rbac_filter_integration_test  TIMEOUT in 1 out of 2 in 902.3s
  Stats over 2 runs: max = 902.3s, min = 811.2s, avg = 856.8s, dev = 45.5s
  WARNING: @envoy//test/extensions/filters/http/rbac:rbac_filter_integration_test: Test execution time (811.2s excluding execution overhead) outside of range for LONG tests. Consider setting timeout="eternal" or size="enormous".
  /build/bazel_root/base/execroot/envoy_filter_example/bazel-out/k8-fastbuild/testlogs/external/envoy/test/extensions/filters/http/rbac/rbac_filter_integration_test/shard_1_of_2/test.log

Executed 1148 out of 1148 tests: 1147 tests pass and 1 fails remotely.
INFO: Streaming build results to: https://source.cloud.google.com/results/invocations/481c1d87-2517-4e08-bd76-3759c5fa1888
~/envoy-filter-example/bazel-testlogs ~/envoy-filter-example
~/envoy-filter-example

https://dev.azure.com/cncf/envoy/_build/results?buildId=164921&view=logs&j=e969334a-0e55-5c18-ac96-8b546753391e&t=4122df52-7ea9-5745-8c7d-f6b6f2c73149&l=127

[phlax]

pushing this past windows lag to fix CI