Fixes breakpoints in generated sources.
Fixes breakpoints in generated sources.

Sets up source maps for the symlinks used by Bazel.

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MOS_MIGRATED_REVID=127854003

pinterest/tulsi,pinterest/tulsi,pinterest/tulsi,pinterest/tulsi,bazelbuild/tulsi,pinterest/tulsi,bazelbuild/tulsi,bazelbuild/tulsi,bazelbuild/tulsi,bazelbuild/tulsi,pinterest/tulsi,bazelbuild/tulsi