This fixes an issue where renaming an overloaded function only renamed
a single definition instead of all overloads and the implementation.
The fix addresses two issues:
1. `navigation_targets_match` in references.rs now checks if any current
target matches any of the target definitions (not just the first).
This is important for overloaded functions where each overload is a
separate definition but they all refer to the same logical symbol.
2. `get_definition_targets` for FunctionDef in goto.rs now uses a new
`definitions_for_name_in_scope` function that returns all definitions
with the same name in the same scope, not just the single function's
definition.
The new `definitions_for_name_in_scope` function in ide_support.rs takes
a file and scope directly, bypassing the scope lookup from a node, which
allows proper handling of function name identifiers.
This also fixes property getter/setter/deleter renaming and submodule
import reference finding, which now correctly identify all related
definitions.
d4358cda65