Add tests in UTF_Utils_Checks.ipf

[t-b]

Close #2615

[Copilot]

Pull request overview

This PR adds comprehensive unit tests for previously untested utility functions in UTF_Utils_Checks.ipf, introduces a reusable wave-type data generator for tests, and normalizes several wave-type predicate implementations to return strict boolean values.

Changes:

• Added GetEmptyWavesOfAllTypes() to UTF_DataGenerators.ipf to generate a reference wave containing empty waves for all supported Igor Pro wave types (numeric, text, wave ref, DFREF, and complex), to drive multi-data tests.
• Implemented unit tests in UTF_Utils_Checks.ipf for numeric predicates (IsFinite, IsNaN, IsInf, IsInteger), string utilities (IsNull, IsEmpty, StringEndsWith, ListHasOnlyOneUniqueEntry), window/value utilities (WindowExists, ValueCanBeWritten, CheckIfClose, CheckIfSmall, FuncRefIsAssigned), and wave-property checks (IsTextWave, IsNumericWave, IsWaveRefWave, IsFloatingPointWave, IsDoubleFloatingPointWave, IsSingleFloatingPointWave, IsGlobalWave, IsComplexWave, IsFreeWave).
• Updated MIES_Utilities_Checks.ipf implementations of IsFloatingPointWave, IsDoubleFloatingPointWave, IsSingleFloatingPointWave, and IsComplexWave to return canonical boolean (0/1) values based on explicit bitmask comparisons, and adjusted StringEndsWith to use a reverse, case-insensitive search consistent with the new tests.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
Packages/tests/UTF_DataGenerators.ipf	Adds GetEmptyWavesOfAllTypes() providing a single source of truth for all Igor Pro wave types, used to drive the new wave-type tests.
Packages/tests/Basic/UTF_Utils_Checks.ipf	Replaces the “missing tests” list with concrete unit tests covering numeric, string, and wave property utilities, including multi-data-driven tests for all wave types and case-insensitive behavior tests for list/string functions.
Packages/MIES/MIES_Utilities_Checks.ipf	Normalizes wave-type predicate return values to strict booleans and refines StringEndsWith to a reverse, case-insensitive suffix search compatible with the newly added tests.

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