Commits on Sep 14, 2021

1. Remove convTslice calls in Record() …

   This is built upon
   census-instrumentation#1267; that
   one should likely merge first. I split this out as it has a small public
   API change (to work around circular imports) to avoid issues on the
   first PR.
   
   Benchmark relative to census-instrumentation#1267:
   ```
   me                    old time/op    new time/op    delta
   Record0-6                 1.74ns ± 4%    1.79ns ± 2%   +2.85%  (p=0.238 n=5+5)
   Record1-6                  634ns ± 6%     542ns ± 9%  -14.55%  (p=0.008 n=5+5)
   Record8-6                 1.21µs ± 5%    1.23µs ± 2%   +1.97%  (p=0.254 n=5+5)
   Record8_WithRecorder-6     777ns ± 5%     792ns ± 5%   +1.97%  (p=0.421 n=5+5)
   Record8_Parallel-6        1.26µs ±24%    1.22µs ± 2%     ~     (p=0.690 n=5+5)
   Record8_8Tags-6           1.23µs ± 2%    1.25µs ± 3%     ~     (p=0.651 n=5+5)
   
   name                    old alloc/op   new alloc/op   delta
   Record0-6                  0.00B          0.00B          ~     (all equal)
   Record1-6                   120B ± 0%       96B ± 0%  -20.00%  (p=0.008 n=5+5)
   Record8-6                   344B ± 0%      320B ± 0%   -6.98%  (p=0.008 n=5+5)
   Record8_WithRecorder-6      424B ± 0%      424B ± 0%     ~     (all equal)
   Record8_Parallel-6          344B ± 0%      320B ± 0%   -6.98%  (p=0.008 n=5+5)
   Record8_8Tags-6             344B ± 0%      320B ± 0%   -6.98%  (p=0.008 n=5+5)
   
   name                    old allocs/op  new allocs/op  delta
   Record0-6                   0.00           0.00          ~     (all equal)
   Record1-6                   3.00 ± 0%      2.00 ± 0%  -33.33%  (p=0.008 n=5+5)
   Record8-6                   3.00 ± 0%      2.00 ± 0%  -33.33%  (p=0.008 n=5+5)
   Record8_WithRecorder-6      4.00 ± 0%      4.00 ± 0%     ~     (all equal)
   Record8_Parallel-6          3.00 ± 0%      2.00 ± 0%  -33.33%  (p=0.008 n=5+5)
   Record8_8Tags-6             3.00 ± 0%      2.00 ± 0%  -33.33%  (p=0.008 n=5+5)
   ```

   

   howardjohn committed Sep 14, 2021
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2. Refactor to avoid leaking into public API

   

   howardjohn committed Sep 14, 2021
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   afd0e34 View commit details

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