core/vm, eth/tracers: simplify interpreter loop #32160
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Closes #32082 #32083
This PR mainly does 2 things,
To do (1), I also had to refactor some of the tracing code as well. Mainly, I had to move dynamic gas tracing from OnOpcode callback to OnGasChange and add some stitching code to preserve the existing output.
Compared to master, this is how it performs.
About some of the ideas that was discussed in Discord;