Add focused coverage for short-form name-based destructuring where the
selected property is not the first declared field. Check the resolved getter
and data flow from the selected field to the destructured local.

The existing extractor selects the property by name correctly. This commit
adds coverage only and requires no extractor change.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Add regression coverage for context parameters on a function and an
extension-property getter. Record callable parameters and implicit call
arguments.

Without the follow-up fix, the test reports missing context parameters,
missing arguments, and database consistency errors.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Treat Kotlin 2.4 IR context parameters as callable value parameters and map
member-access arguments using their parameter kinds instead of assuming that
all non-regular parameters form a prefix.

This restores context parameters and implicit arguments while preserving
dispatch and extension receiver handling. The change is confined to the
Kotlin 2.4 compatibility source set.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Extend the context-parameter regression test to an extension-property setter.
Check the extension receiver, context argument, assigned value, and resolved
setter call.

The preceding extractor fix already handles this case correctly. This commit
adds coverage only and requires no additional extractor change.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Add focused coverage for a collection literal resolved through a companion
operator fun of. Check the call target, arguments, result type, locations,
and element data flow through the resulting collection.

The existing extractor handles the lowered call correctly. This commit adds
coverage only and requires no extractor change.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Add focused coverage for a companion-block function and companion extension
function and property. Check declaration ownership, property accessors,
resolved calls, and data flow.

The existing extractor handles the lowered declarations and calls correctly.
This commit adds coverage only and requires no extractor change.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Add a JVM 21 regression test for when generation using invokedynamic. The
same expected source AST also passes with inline when generation.

The backend choice does not change the IR observed by the extractor. This
commit adds coverage only and requires no extractor change.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Replace the secondary constructor's Long conversion with a String overload.
This preserves coverage for non-trivial value-class construction without
exercising an unrelated primitive-conversion diagnostic.

This is a test-only refinement and does not change extractor behaviour.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Derive Kotlin 2.4 parameter indices from preceding context and regular
parameters while reserving the Java parameter slot for an extension receiver.

This removes negative context-parameter indices and prevents setter parameter
label collisions found by the consistency checks.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>