[FIR] Properly assign <local> packages to symbols

This prevents `FirConflictsExpressionChecker.kt`
from missing conflicting local functions. It used
to due to inconsistencies in assigning `<local>`,
and this commit makes it a bit more
straightforward.

The change in KtClassTypeQualifierRenderer
prevents `FirOverrideImplementTest.testLocalClass`
from failing in `intellij`. It didn't fail for
callables, because `KtCallableSignatureRenderer`
doesn't try to render packages.

^KT-59186 Fixed

compiler/fir/analysis-tests/testData/resolve/extendedCheckers/RedundantVisibilityModifierChecker.fir.txt

@@ -2,7 +2,7 @@ FILE: RedundantVisibilityModifierChecker.kt
     public final fun f(): R|kotlin/Unit| {
         lvar baz: R|kotlin/Int| = Int(0)
         local final class LocalClass : R|kotlin/Any| {
-            public constructor(): R|LocalClass| {
+            public constructor(): R|<local>/LocalClass| {
                 super<R|kotlin/Any|>()
             }
 

compiler/fir/analysis-tests/testData/resolve/extendedCheckers/RedundantVisibilityModifierCheckerWithExplicitApiMode.fir.txt

@@ -1,7 +1,7 @@
 FILE: RedundantVisibilityModifierCheckerWithExplicitApiMode.kt
     public final fun f1(): R|kotlin/Unit| {
         local final class LocalClass : R|kotlin/Any| {
-            public constructor(): R|LocalClass| {
+            public constructor(): R|<local>/LocalClass| {
                 super<R|kotlin/Any|>()
             }
 

compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/localVariable.fir.txt

@@ -6,7 +6,7 @@ FILE: localVariable.kt
 
         public final fun foo(): R|kotlin/Unit| {
             local final class Local : R|kotlin/Any| {
-                public constructor(): R|Outer.Local| {
+                public constructor(): R|<local>/Local| {
                     super<R|kotlin/Any|>()
                 }
 

compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/localVariableInSecondaryConstructor.fir.txt

@@ -2,15 +2,15 @@ FILE: localVariableInSecondaryConstructor.kt
     public final fun main(): R|kotlin/Unit| {
         lval localVariable: R|kotlin/Int| = Int(0)
         local final class LocalClass : R|kotlin/Any| {
-            public constructor(arg: R|kotlin/Int|): R|LocalClass| {
+            public constructor(arg: R|kotlin/Int|): R|<local>/LocalClass| {
                 super<R|kotlin/Any|>()
             }
 
             public final val arg: R|kotlin/Int| = R|<local>/arg|
                 public get(): R|kotlin/Int|
 
-            public constructor(): R|LocalClass| {
-                this<R|LocalClass|>(R|<local>/localVariable|)
+            public constructor(): R|<local>/LocalClass| {
+                this<R|<local>/LocalClass|>(R|<local>/localVariable|)
             }
 
         }