[JS IR] [Wasm] Extract InlineClassesUtils into CommonBackendContext

compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/utils/WasmInlineClassesUtils.kt

@@ -6,20 +6,15 @@
 package org.jetbrains.kotlin.backend.wasm.utils
 
 import org.jetbrains.kotlin.backend.wasm.WasmSymbols
-import org.jetbrains.kotlin.ir.backend.js.InlineClassesUtils
+import org.jetbrains.kotlin.ir.backend.js.JsCommonInlineClassesUtils
 import org.jetbrains.kotlin.ir.backend.js.utils.erase
 import org.jetbrains.kotlin.ir.declarations.IrClass
-import org.jetbrains.kotlin.ir.declarations.IrConstructor
 import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
 import org.jetbrains.kotlin.ir.types.IrSimpleType
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.ir.types.isNullable
-import org.jetbrains.kotlin.ir.util.fqNameWhenAvailable
 
-class WasmInlineClassesUtils(private val wasmSymbols: WasmSymbols) : InlineClassesUtils {
-    override fun isTypeInlined(type: IrType): Boolean {
-        return getInlinedClass(type) != null
-    }
+class WasmInlineClassesUtils(private val wasmSymbols: WasmSymbols) : JsCommonInlineClassesUtils {
 
     override fun getInlinedClass(type: IrType): IrClass? {
         if (type is IrSimpleType) {
@@ -36,7 +31,7 @@ class WasmInlineClassesUtils(private val wasmSymbols: WasmSymbols) : InlineClass
     override fun isClassInlineLike(klass: IrClass): Boolean {
         // TODO: This hook is called from autoboxing lowering so we also handle autoboxing annotation here. In the future it's better
         // to separate autoboxing from the inline class handling.
-        return klass.isInline || klass.hasWasmAutoboxedAnnotation()
+        return super.isClassInlineLike(klass) || klass.hasWasmAutoboxedAnnotation()
     }
 
     override val boxIntrinsic: IrSimpleFunctionSymbol
@@ -44,17 +39,4 @@ class WasmInlineClassesUtils(private val wasmSymbols: WasmSymbols) : InlineClass
 
     override val unboxIntrinsic: IrSimpleFunctionSymbol
         get() = wasmSymbols.unboxIntrinsic
-
-    /**
-     * Unlike [org.jetbrains.kotlin.ir.util.getInlineClassUnderlyingType], doesn't use [IrClass.inlineClassRepresentation] because
-     * for some reason it can be called for classes which are not inline, e.g. `kotlin.Double`.
-     */
-    fun getInlineClassUnderlyingType(irClass: IrClass): IrType {
-        for (declaration in irClass.declarations) {
-            if (declaration is IrConstructor && declaration.isPrimary) {
-                return declaration.valueParameters[0].type
-            }
-        }
-        error("Class has no primary constructor: ${irClass.fqNameWhenAvailable}")
-    }
 }