Cleanup #22182

[Lichtso]

Problem

#22182 was made right in between my program-runtime refactorings (see #22165 and https://github.com/Lichtso/solana/tree/refactor/remove_keyed_account_from_program_runtime), and is based on an incomplete state of the program-runtime in transition. Together with the earlier #22059, its revert #22174 and its fix #22202 lead to heavy merge conflicts three times now. Thus, I split the adoption of my refactoring to that up, into this PR.

Summary of Changes

• Turns compute_units_consumed of ProcessInstructionResult into a &mut parameter.
• Unifies test_process_cross_program(), test_native_invoke() and test_process_instruction_compute_budget() into test_process_instruction().

Fixes #

[codecov]

Codecov Report

Merging #22205 (153cbde) into master (94a9b71) will decrease coverage by 0.0%.
The diff coverage is 94.7%.

@@            Coverage Diff            @@
##           master   #22205     +/-   ##
=========================================
- Coverage    81.1%    81.0%   -0.1%     
=========================================
  Files         523      523             
  Lines      146609   146487    -122     
=========================================
- Hits       118904   118748    -156     
- Misses      27705    27739     +34