[JS IR] Fix case with bridge with nested classes

^KT-54686 fixed

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/JsIrBackendContext.kt

@@ -415,10 +415,4 @@ class JsIrBackendContext(
         outlinedJsCodeFunctions[symbol] = parsedJsFunction
         return parsedJsFunction
     }
-
-    private var irFunctionSignatureCache = hashMapOf<IrFunction, String>()
-
-    fun getFunctionSignatureFromCache(f: IrFunction): String {
-        return irFunctionSignatureCache.getOrPut(f) { calculateJsFunctionSignature(f, this) }
-    }
 }

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/JsBridgesConstruction.kt

@@ -34,7 +34,10 @@ class JsBridgesConstruction(context: JsIrBackendContext) : BridgesConstruction<J
     private val primitiveToLiteralConstructor = context.intrinsics.primitiveToLiteralConstructor
 
     override fun getFunctionSignature(function: IrSimpleFunction) =
-        jsFunctionSignature(function, context)
+        jsFunctionSignature(
+            function,
+            context
+        )
 
     override fun getBridgeOrigin(bridge: IrSimpleFunction): IrDeclarationOrigin =
         when {

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/utils/NameTables.kt

@@ -158,7 +158,10 @@ fun calculateJsFunctionSignature(declaration: IrFunction, context: JsIrBackendCo
     ) + "_" + abs(signature.hashCode()).toString(Character.MAX_RADIX) + RESERVED_MEMBER_NAME_SUFFIX
 }
 
-fun jsFunctionSignature(declaration: IrFunction, context: JsIrBackendContext): String {
+fun jsFunctionSignature(
+    declaration: IrFunction,
+    context: JsIrBackendContext
+): String {
     require(!declaration.isStaticMethodOfClass)
     require(declaration.dispatchReceiverParameter != null)
 
@@ -172,7 +175,7 @@ fun jsFunctionSignature(declaration: IrFunction, context: JsIrBackendContext): S
     }
 
     val declarationSignature = (declaration as? IrSimpleFunction)?.resolveFakeOverride() ?: declaration
-    return context.getFunctionSignatureFromCache(declarationSignature)
+    return calculateJsFunctionSignature(declarationSignature, context)
 }
 
 class NameTables(