Use GETFIELD instead of unbox-impl inside inline classes

#KT-36783 Fixed

compiler/testData/codegen/bytecodeText/coroutines/inlineClasses/inlineClassBoxingInSuspendFunReturn_Primitive.kt

@@ -1,6 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
-// IGNORE_BACKEND: JVM_IR
-
 inline class ICInt(val x: Int) // unbox-impl in generated 'equals'
 
 suspend fun suspendICInt(): ICInt = ICInt(1) // box-impl

compiler/testData/codegen/bytecodeText/coroutines/inlineClasses/noInlineClassBoxingInSuspendFunReturn_Any.kt

@@ -1,6 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
-// IGNORE_BACKEND: JVM_IR
-
 inline class ICAny(val x: Any)
 
 suspend fun suspendICAny(): ICAny = ICAny("")

compiler/testData/codegen/bytecodeText/coroutines/inlineClasses/noInlineClassBoxingInSuspendFunReturn_InlineAny.kt

@@ -1,6 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
-// IGNORE_BACKEND: JVM_IR
-
 inline class IC0(val x: Any) // IC0.unbox-impl in generated 'equals'
 inline class IC1(val x: IC0) // IC1.unbox-impl in generated 'equals'
 

compiler/testData/codegen/bytecodeText/coroutines/inlineClasses/noInlineClassBoxingInSuspendFunReturn_SameJvmType.kt

@@ -1,6 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
-// IGNORE_BACKEND: JVM_IR
-
 interface I
 
 inline class ICI(val i: I): I

compiler/testData/codegen/bytecodeText/coroutines/inlineClasses/noInlineClassBoxingInSuspendFunReturn_String.kt

@@ -1,6 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
-// IGNORE_BACKEND: JVM_IR
-
 inline class ICString(val x: String)
 
 suspend fun suspendICString(): ICString = ICString("")