[FIR] Fix incorrect resolve of callable reference in function signature (^KT-48304 Fixed)

compiler/testData/diagnostics/tests/callableReference/unsupported/callableReferenceToLocalVariable.fir.kt

@@ -0,0 +1,22 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER -UNUSED_VARIABLE
+
+
+fun a() {
+    val x = 10
+    <!INAPPLICABLE_CANDIDATE!>foo<!>(::<!UNSUPPORTED!>x<!>)
+}
+
+fun foo(a: Any) {}
+
+fun test1(test2: () -> Unit = ::test2) {} // Resolve to function
+private fun test2() {}
+fun test3(test4: () -> Unit = ::<!UNSUPPORTED!>test4<!>) {}
+
+fun test5(test6: (test: Test) -> Unit = Test::helper) {
+    test6(Test())
+}
+
+class Test {
+    fun helper() {}
+}
+

compiler/testData/diagnostics/tests/callableReference/unsupported/callableReferenceToLocalVariable.kt

@@ -1,9 +1,22 @@
-// FIR_IDENTICAL
 // !DIAGNOSTICS: -UNUSED_PARAMETER -UNUSED_VARIABLE
 
+
 fun a() {
     val x = 10
     foo(::<!UNSUPPORTED!>x<!>)
 }
 
 fun foo(a: Any) {}
+
+fun test1(test2: () -> Unit = ::test2) {} // Resolve to function
+private fun test2() {}
+fun test3(test4: () -> Unit = ::<!UNSUPPORTED!>test4<!>) {}
+
+fun test5(test6: (test: Test) -> Unit = Test::helper) {
+    test6(Test())
+}
+
+class Test {
+    fun helper() {}
+}
+

compiler/testData/diagnostics/tests/callableReference/unsupported/callableReferenceToLocalVariable.txt

@@ -2,3 +2,16 @@ package
 
 public fun a(): kotlin.Unit
 public fun foo(/*0*/ a: kotlin.Any): kotlin.Unit
+public fun test1(/*0*/ test2: () -> kotlin.Unit = ...): kotlin.Unit
+private fun test2(): kotlin.Unit
+public fun test3(/*0*/ test4: () -> kotlin.Unit = ...): kotlin.Unit
+public fun test5(/*0*/ test6: (test: Test) -> kotlin.Unit = ...): kotlin.Unit
+
+public final class Test {
+    public constructor Test()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public final fun helper(): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+

compiler/testData/diagnostics/tests/callableReference/unsupported/localVariable.fir.kt

@@ -0,0 +1,15 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER -UNUSED_VARIABLE
+
+fun eat(value: Any) {}
+
+fun test(param: String) {
+    val a = ::<!UNSUPPORTED!>param<!>
+
+    val local = "local"
+    val b = ::<!UNSUPPORTED!>local<!>
+
+    val lambda = { -> }
+    val g = ::<!UNSUPPORTED!>lambda<!>
+
+    <!INAPPLICABLE_CANDIDATE!>eat<!>(::<!UNSUPPORTED!>param<!>)
+}

compiler/testData/diagnostics/tests/callableReference/unsupported/localVariable.kt

@@ -1,4 +1,3 @@
-// FIR_IDENTICAL
 // !DIAGNOSTICS: -UNUSED_PARAMETER -UNUSED_VARIABLE
 
 fun eat(value: Any) {}

compiler/testData/diagnostics/tests/callableReference/unsupported/localVariableWithSubstitution.fir.kt

@@ -9,6 +9,6 @@ class Foo {
 fun main() {
     val f = Foo()
     val a: Int
-    <!VARIABLE_EXPECTED!>get()<!> = f.<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>getValue<!>(null, ::<!UNSUPPORTED!>a<!>) // no exception after fix
+    <!VARIABLE_EXPECTED!>get()<!> = f.<!INAPPLICABLE_CANDIDATE!>getValue<!>(null, ::<!UNSUPPORTED!>a<!>) // no exception after fix
     <!UNRESOLVED_REFERENCE!>print<!>(<!UNINITIALIZED_VARIABLE!>a<!>)
 }

compiler/testData/diagnostics/tests/callableReference/unsupported/parameterWithSubstitution.fir.kt

@@ -9,6 +9,6 @@ class Foo {
 fun main(x: Int) {
     val f = Foo()
     val a: Int
-    <!VARIABLE_EXPECTED!>get()<!> = f.<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>getValue<!>(null, ::<!UNSUPPORTED!>x<!>) // no exception after fix
+    <!VARIABLE_EXPECTED!>get()<!> = f.<!INAPPLICABLE_CANDIDATE!>getValue<!>(null, ::<!UNSUPPORTED!>x<!>) // no exception after fix
     <!UNRESOLVED_REFERENCE!>print<!>(<!UNINITIALIZED_VARIABLE!>a<!>)
 }