Error on mismatched template predicate

[zaides-blackduck]

Issue Summary

EDG 7.0 can't match c style predicate function to a std::function type method with same parameters and return value. This is a valid matching in GCC but not in clang.

Reproducing Source Code

reproducer.cpp

Command-line Options

--c++23

Type of Issue

[Front End] This code SHOULD compile with these options.

Additional Details

Compiles with GCC (tested 12.1+), does not compile with clang.

Reproducing (Standard) Configuration(s)

No response

Reproducing (Non-standard) Configuration

No response

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• The reproducing source code that I have provided does not depend on headers that I have not included with my submission.
• I have reduced the reproducing source code to the best of my ability.
• I have selected at least one standard configuration or uploaded a non-standard configuration dump.
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