FIR2IR: fix handling constructors & their symbols (related also to local classes)

compiler/testData/ir/irText/classes/localClasses.fir.txt

@@ -1,14 +0,0 @@
-FILE fqName:<root> fileName:/localClasses.kt
-  FUN name:outer visibility:public modality:FINAL <> () returnType:kotlin.Unit
-    BLOCK_BODY
-      CLASS CLASS name:LocalClass modality:FINAL visibility:local superTypes:[kotlin.Any]
-        $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.outer.LocalClass
-        CONSTRUCTOR visibility:public <> () returnType:IrErrorType [primary]
-          BLOCK_BODY
-            DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
-            INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:LocalClass modality:FINAL visibility:local superTypes:[kotlin.Any]'
-        FUN name:foo visibility:public modality:FINAL <> ($this:<root>.outer.LocalClass) returnType:kotlin.Unit
-          $this: VALUE_PARAMETER name:<this> type:<root>.outer.LocalClass
-          BLOCK_BODY
-      ERROR_CALL 'Unresolved reference: <Unresolved name: foo>#' type=IrErrorType
-

compiler/testData/ir/irText/classes/localClasses.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 fun outer() {
     class LocalClass {
         fun foo() {}