[PATCH 43/79] [DebugInfo] Fix translation of Target Function operand (#1982)

[PATCH 43/79] [DebugInfo] Fix translation of Target Function operand (#1982)

Before reading Target function name operand of `DebugFunction` we need
to make sure it's the translation of appropriate debug extension.
Otherwise, we can get in a situation, where we do have 11 operands, but
the last one is not a `String` with name, but the `DebugFunctionDeclaration`.

Gbp-Pq: Name 0043-DebugInfo-Fix-translation-of-Target-Function-operand.patch