Put span-level iters before span attr-level iters

[mapno]

What this PR does:

Matches span-level conditions before span attribute-level conditions, which are cheaper to read.

                                                    │   old.txt    │               new.txt                │
                                                    │    sec/op    │    sec/op     vs base                │
BackendBlockTraceQL/spanAttNameNoMatch-12             26.35m ±  0%   26.24m ±  0%   -0.41% (p=0.005 n=10)
BackendBlockTraceQL/spanAttValNoMatch-12              30.13m ±  0%   30.07m ±  0%        ~ (p=0.315 n=10)
BackendBlockTraceQL/spanAttValMatch-12                294.9m ±  0%   294.7m ±  3%        ~ (p=0.123 n=10)
BackendBlockTraceQL/spanAttIntrinsicNoMatch-12        26.31m ±  0%   26.36m ±  0%   +0.19% (p=0.003 n=10)
BackendBlockTraceQL/spanAttIntrinsicMatch-12          166.0m ± 14%   142.7m ± 16%  -14.02% (p=0.043 n=10)
BackendBlockTraceQL/spanAttIntrinsicRegexNoMatch-12   26.70m ±  0%   26.74m ±  0%        ~ (p=0.105 n=10)
BackendBlockTraceQL/spanAttIntrinsicRegexMatch-12     195.9m ±  0%   196.1m ±  0%        ~ (p=0.912 n=10)
BackendBlockTraceQL/resourceAttNameNoMatch-12         25.76m ±  0%   25.80m ±  0%        ~ (p=0.315 n=10)
BackendBlockTraceQL/resourceAttValNoMatch-12          25.70m ±  0%   25.72m ±  0%        ~ (p=0.436 n=10)
BackendBlockTraceQL/resourceAttValMatch-12            49.18m ±  0%   49.26m ±  0%        ~ (p=0.315 n=10)
BackendBlockTraceQL/resourceAttIntrinsicNoMatch-12    25.50m ±  0%   25.56m ±  0%   +0.24% (p=0.029 n=10)
BackendBlockTraceQL/resourceAttIntrinsicMatch-12      107.7m ±  0%   107.7m ±  0%        ~ (p=0.393 n=10)
BackendBlockTraceQL/mixedNameNoMatch-12                1.981 ±  0%    1.985 ±  0%   +0.18% (p=0.009 n=10)
BackendBlockTraceQL/mixedValNoMatch-12                 1.587 ±  0%    1.581 ±  0%   -0.35% (p=0.000 n=10)
BackendBlockTraceQL/mixedValMixedMatchAnd-12          25.78m ±  0%   25.77m ±  0%        ~ (p=0.481 n=10)
BackendBlockTraceQL/mixedValMixedMatchOr-12            1.629 ±  0%    1.572 ±  4%   -3.53% (p=0.003 n=10)
BackendBlockTraceQL/mixedValBothMatch-12              25.50m ±  0%   25.51m ±  0%        ~ (p=0.796 n=10)
BackendBlockTraceQL/count-12                           3.310 ±  0%    3.310 ±  0%        ~ (p=0.684 n=10)
BackendBlockTraceQL/desc-12                            4.743 ±  0%    4.662 ±  2%        ~ (p=0.075 n=10)
geomean                                               133.8m         132.4m         -1.06%

                                                    │    old.txt    │                new.txt                │
                                                    │      B/s      │      B/s       vs base                │
BackendBlockTraceQL/spanAttNameNoMatch-12             416.5Mi ±  0%   418.2Mi ±  0%   +0.41% (p=0.006 n=10)
BackendBlockTraceQL/spanAttValNoMatch-12              425.0Mi ±  0%   425.8Mi ±  0%        ~ (p=0.315 n=10)
BackendBlockTraceQL/spanAttValMatch-12                54.61Mi ±  0%   54.66Mi ±  3%        ~ (p=0.127 n=10)
BackendBlockTraceQL/spanAttIntrinsicNoMatch-12        499.0Mi ±  0%   498.1Mi ±  0%   -0.18% (p=0.003 n=10)
BackendBlockTraceQL/spanAttIntrinsicMatch-12          368.4Mi ± 16%   428.5Mi ± 14%  +16.31% (p=0.043 n=10)
BackendBlockTraceQL/spanAttIntrinsicRegexNoMatch-12   491.6Mi ±  0%   491.0Mi ±  0%        ~ (p=0.105 n=10)
BackendBlockTraceQL/spanAttIntrinsicRegexMatch-12     312.1Mi ±  0%   311.9Mi ±  0%        ~ (p=0.912 n=10)
BackendBlockTraceQL/resourceAttNameNoMatch-12         165.5Mi ±  0%   165.3Mi ±  0%        ~ (p=0.315 n=10)
BackendBlockTraceQL/resourceAttValNoMatch-12          161.8Mi ±  0%   161.7Mi ±  0%        ~ (p=0.403 n=10)
BackendBlockTraceQL/resourceAttValMatch-12            435.4Mi ±  0%   434.7Mi ±  0%        ~ (p=0.315 n=10)
BackendBlockTraceQL/resourceAttIntrinsicNoMatch-12    190.4Mi ±  0%   189.9Mi ±  0%   -0.24% (p=0.022 n=10)
BackendBlockTraceQL/resourceAttIntrinsicMatch-12      647.9Mi ±  0%   647.6Mi ±  0%        ~ (p=0.393 n=10)
BackendBlockTraceQL/mixedNameNoMatch-12               12.32Mi ±  0%   12.29Mi ±  0%   -0.23% (p=0.010 n=10)
BackendBlockTraceQL/mixedValNoMatch-12                15.37Mi ±  0%   15.43Mi ±  0%   +0.34% (p=0.000 n=10)
BackendBlockTraceQL/mixedValMixedMatchAnd-12          165.4Mi ±  0%   165.5Mi ±  0%        ~ (p=0.469 n=10)
BackendBlockTraceQL/mixedValMixedMatchOr-12           40.77Mi ±  0%   42.26Mi ±  3%   +3.65% (p=0.002 n=10)
BackendBlockTraceQL/mixedValBothMatch-12              190.4Mi ±  0%   190.3Mi ±  0%        ~ (p=0.781 n=10)
BackendBlockTraceQL/count-12                          41.12Mi ±  0%   41.13Mi ±  0%        ~ (p=0.617 n=10)
BackendBlockTraceQL/desc-12                           33.04Mi ±  0%   33.63Mi ±  2%        ~ (p=0.065 n=10)
geomean                                               145.8Mi         147.4Mi         +1.07%