Unable to compile TEMPLATE_TEST_CASE_SIG with 7 templates

[nicolapiccinelli]

Describe the bug
The following test won't compile:

TEMPLATE_TEST_CASE_SIG("Title", "[con][template]",
                       ((int Tnx, int Tnu, int Tny, int Tph, int Tch, int Tineq, int Teq), Tnx, Tnu, Tny, Tph, Tch, Tineq, Teq),
                       (1, 1, 1, 1, 1, 0, 0), (5, 1, 1, 1, 1, 0, 0), (5, 3, 1, 1, 1, 0, 0),
                       (5, 3, 1, 7, 1, 0, 0), (5, 3, 1, 7, 4, 0, 0), (5, 3, 1, 7, 7, 0, 0))

This is the compiler error

... fatal error: too few arguments provided to function-like macro invocation
TEMPLATE_TEST_CASE_SIG("Checking missing user constraints", "[constraints][template]",
^
/usr/local/include/catch2/catch.hpp:17455:39: note: expanded from macro 'TEMPLATE_TEST_CASE_SIG'
#define TEMPLATE_TEST_CASE_SIG( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG( __VA_ARGS__ )
                                      ^
/usr/local/include/catch2/catch.hpp:1130:9: note: expanded from macro 'INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG'
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_...
        ^
/usr/local/include/catch2/catch.hpp:1112:22: note: expanded from macro 'INTERNAL_CATCH_TEMPLATE_TEST_CASE_2'
            TestName<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(__VA_ARGS__)>();\
                     ^
/usr/local/include/catch2/catch.hpp:770:20: note: expanded from macro 'INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES'
    CATCH_REC_LIST(INTERNAL_CATCH_MAKE_TYPE_LIST,__VA_ARGS__)
                   ^
/usr/local/include/catch2/catch.hpp:777:9: note: macro 'INTERNAL_CATCH_REMOVE_PARENS_6_ARG' defined here
#define INTERNAL_CATCH_REMOVE_PARENS_6_ARG(_0, _1, _2, _3, _4, _5) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_5_ARG(_1, _2, _3, _4, _5)

Expected behavior
Should compile

Reproduction steps
To reproduce the error is enough an empty test with the signature above:

TEMPLATE_TEST_CASE_SIG("Title, "[con][template]",
                       ((int Tnx, int Tnu, int Tny, int Tph, int Tch, int Tineq, int Teq), Tnx, Tnu, Tny, Tph, Tch, Tineq, Teq),
                       (1, 1, 1, 1, 1, 0, 0), (5, 1, 1, 1, 1, 0, 0), (5, 3, 1, 1, 1, 0, 0),
                       (5, 3, 1, 7, 1, 0, 0), (5, 3, 1, 7, 4, 0, 0), (5, 3, 1, 7, 7, 0, 0))
{
}

Platform information:

• OS: Catalina 10.15.4
• Compiler+version: Apple clang version 11.0.3 (clang-1103.0.32.62)
• Catch version: Catch v2.12.2

[horenmar]

We have had to implement those macros using copy paste due to MSVC's preprocessor and apparently in the 7-arg case we made a copy paste error.

Should be fixed now.