Improve attribute handling in opaqueGenericParameters rule

[calda]

This PR improves attribute handling in the opaqueGenericParameters rule.

To fix #1684, 383fd48 made it so the opaqueGenericParameters was disabled for all functions with attributes. However, in most cases attributes don't cause any issues. For example:

@MyResultBuilder
func foo<T: Foo, U: Bar>(foo: T, bar: U) -> MyResult {
    foo
    bar
}

@MyFunctionBodyMacro(withArgument: true)
func foo<T: Foo, U: Bar>(foo: T, bar: U) {
    print(foo, bar)
}

This PR tweaks the existing fix to check the tokens of the attributes, and whether or not they reference any of the generic arguments. #1684 remains fixed, and the above examples are now updated as expected:

@MyResultBuilder
func foo(foo: some Foo, bar: some Bar) -> MyResult {
    foo
    bar
}

@MyFunctionBodyMacro(withArgument: true)
func foo(foo: some Foo, bar: some Bar) {
    print(foo, bar)
}

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.14%. Comparing base (f487996) to head (91bf6e3).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1713   +/-   ##
========================================
  Coverage    95.13%   95.14%           
========================================
  Files           20       20           
  Lines        23124    23130    +6     
========================================
+ Hits         21998    22006    +8     
+ Misses        1126     1124    -2     

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