fixup! Assignment side effects may require additional temporaries

[tautschnig]

The fixes in #5858 addressed the problem of assignments having side
effects, but did not consider function calls or pre-increment/decrement,
which eventually also yield assignments, and thus may have similar side
effects.

• Each commit message has a non-empty body, explaining why the change was made.
• n/a Methods or procedures I have added are documented, following the guidelines provided in CODING_STANDARD.md.
• n/a The feature or user visible behaviour I have added or modified has been documented in the User Guide in doc/cprover-manual/
• Regression or unit tests are included, or existing tests cover the modified code (in this case I have detailed which ones those are in the commit message).
• n/a My commit message includes data points confirming performance improvements (if claimed).
• My PR is restricted to a single feature or bugfix.
• n/a White-space or formatting changes outside the feature-related changed lines are in commits of their own.

[codecov]

Codecov Report

Merging #5860 (6ac670c) into develop (4daa686) will increase coverage by 0.00%.
The diff coverage is 93.96%.

@@           Coverage Diff            @@
##           develop    #5860   +/-   ##
========================================
  Coverage    72.89%   72.89%           
========================================
  Files         1423     1423           
  Lines       154229   154252   +23     
========================================
+ Hits        112426   112449   +23     
  Misses       41803    41803           

Impacted Files	Coverage Δ
src/analyses/goto_check.cpp	88.28% <ø> (ø)
.../goto-instrument/goto_instrument_parse_options.cpp	58.20% <ø> (ø)
...rc/goto-instrument/goto_instrument_parse_options.h	100.00% <ø> (ø)
src/goto-programs/goto_convert_class.h	87.30% <ø> (ø)
src/goto-diff/goto_diff_parse_options.cpp	58.67% <75.00%> (ø)
src/goto-analyzer/goto_analyzer_parse_options.cpp	73.25% <90.90%> (ø)
src/util/std_code.h	94.00% <90.90%> (ø)
src/util/format_expr.cpp	86.38% <93.02%> (ø)
src/cbmc/cbmc_parse_options.cpp	75.20% <100.00%> (ø)
src/goto-instrument/dump_c.cpp	79.97% <100.00%> (ø)
... and 18 more

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