bors 71ecf5d359 Auto merge of #98851 - klensy:encode_symbols, r=cjgillot
rustc_metadata: dedupe strings to prevent multiple copies in rmeta/query cache blow file size

r? `@cjgillot`

Encodes strings in rmeta/query cache so duplicated ones will be encoded as offsets to first strings, reducing file size.
2022-08-18 23:53:22 +00:00
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