refactor(@angular-devkit/build-angular): allow internal Angular compilation control of diagnostic modes #26861
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To support generate diagnostics in varying ways, the internal compilation classes now support a
modes
argument when diagnosing files during a build using theapplication
builder. This is not exposed as an option at this time but can be experimented with a build using theNG_BUILD_TYPE_CHECK
environment variable. This environment variable is not considered part of the public API and may be removed or altered in the future. Its current purpose is to allow profiling of the type checking diagnostics functionality of the build system.