Preserve locations across classic CLVM evaluation

[prozacchiwawa]

Summary

• add a ClassicAllocator::run_program wrapper around TRunProgram
• cache raw CLVM input locations by tree hash for each execution and restore locations on matching result subtrees without changing their CLVM values
• clear the execution cache after both successful and failed runs
• route classic codegen compilation, macro, optimization, include, and symbol evaluation through the wrapper
• cover matching-location restoration and cache lifetime with a focused unit test

Testing

• cargo check
• cargo test run_program_restores_matching_locations_and_clears_its_cache
• cargo test test_equivalence_mandelbrot_classic
• cargo test test_classic_codegen_recursive_source_locations
• cargo test test_classic_codegen_function_call_with_rest_tail
• cargo test -- --skip compile_performance_suite (706 passed; 0 failed; 1 ignored)