properly position annotation on qualified record declarations

[andrurogerz]

Overview

Properly position the annotation on qualified struct/class declarations.

Background

Prior to this change, IDS would incorrectly emit the position for a record annotation like so:

/home/andrew/src/ids/Tests/QualifiedRecordNames.hh:9:28: remark: unexported public interface 'QualifiedNameClass'
    9 | struct ContainerNamespace::QualifiedNameClass {
      |                            ^
      |                            IDT_TEST_ABI

Having the annotation in this position is invalid and will not compile.

NOTE: special handling for qualified names is only necessary when annotating records. This is because the annotation has to follow the class/struct/union keyword. For variables and functions, the annotation always goes at the beginning of the declaration reported by getBeginLoc().

Validation

New test cases.
Manually verified the fixit is properly positioned.

/home/andrew/src/ids/Tests/QualifiedRecordNames.hh:9:8: remark: unexported public interface 'QualifiedNameClass'
    9 | struct ContainerNamespace::QualifiedNameClass {
      |        ^
      |        IDT_TEST_ABI