fix(#1632): narrow empty arg defaultValue to ADDRESS only

[marcin-kordas-hoc]

Problem

When a user writes =ADDRESS(1,1,) or =ADDRESS(1,1,1,), the empty argument
is coerced to 0/false instead of using the parameter's declared defaultValue.

Excel 2021 and Google Sheets treat empty args as the zero-value for the type
(0/FALSE) for all functions except ADDRESS, where empty absNum and
a1Style use their declared defaults (1 and true).

Fixes #1632

Fix

• Add emptyAsDefault opt-in flag to FunctionArgument interface
• In coerceArgumentsToRequiredTypes: when rawArg === EmptyValue AND
  emptyAsDefault is set AND defaultValue is declared → substitute defaultValue
• Apply emptyAsDefault: true only to ADDRESS absNum and a1Style parameters

Tests

Regression tests in handsontable/hyperformula-tests (branch fix/empty-default-value):

• ADDRESS: isolated tests for empty absNum, empty a1Style, both empty
• LOG, MATCH, VLOOKUP, HLOOKUP: confirm empty → zero-value (not defaultValue)
• optional-parameters.spec.ts: confirms empty args use zero-value coercion (not defaultValue) when emptyAsDefault is not set

---

Note

Medium Risk
Touches the core argument-coercion path in FunctionPlugin, so any function that opts into emptyAsDefault could change behavior; impact is otherwise scoped to parameters explicitly marked with the new flag.

Overview
Updates function-argument coercion to optionally treat an explicitly empty argument (EmptyValue, e.g. trailing comma) as missing and substitute the parameter’s defaultValue instead of coercing the empty value to 0/false.

Adds a new FunctionArgument.emptyAsDefault metadata flag to opt into this behavior, and enables it for ADDRESS’s abs and useA1Style optional parameters so ADDRESS(…, , ) uses the declared defaults.

^{Written by Cursor Bugbot for commit f09a219. This will update automatically on new commits. Configure here.}

[github-actions]

Performance comparison of head (f09a219) vs base (4042b04)

                                     testName |   base |   head | change
------------------------------------------------------------------------
                                      Sheet A | 481.28 | 481.17 | -0.02%
                                      Sheet B | 152.97 | 153.66 | +0.45%
                                      Sheet T |  134.7 | 134.23 | -0.35%
                                Column ranges | 464.85 | 460.71 | -0.89%
Sheet A:  change value, add/remove row/column |  14.76 |  14.58 | -1.22%
 Sheet B: change value, add/remove row/column | 129.89 | 123.98 | -4.55%
                   Column ranges - add column | 142.77 | 143.21 | +0.31%
                Column ranges - without batch | 433.31 | 442.26 | +2.07%
                        Column ranges - batch | 109.17 | 109.66 | +0.45%

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.18%. Comparing base (4042b04) to head (f09a219).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1631   +/-   ##
========================================
  Coverage    97.18%   97.18%           
========================================
  Files          172      172           
  Lines        14836    14841    +5     
  Branches      3258     3262    +4     
========================================
+ Hits         14418    14423    +5     
  Misses         418      418           

Files with missing lines	Coverage Δ
src/interpreter/plugin/AddressPlugin.ts	100.00% <ø> (ø)
src/interpreter/plugin/FunctionPlugin.ts	99.04% <100.00%> (+0.02%)	⬆️

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