JVM IR: replace unnecessary property accessor calls with field access

Split the ConstAndJvmFieldPropertiesLowering into two: ConstLowering
which replaces const vals with their values, and
PropertiesToFieldsLowering which removes unnecessary property accessors
(such as for JvmField or private properties with default accessors) and
replaces calls to those accessors with field access

compiler/testData/codegen/bytecodeText/companion/kt14258_1.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JVM_IR
 // Checks that methods 'access$getMy$p', 'access$getMy$cp' and 'getMy' are not generated and
 // that backed field 'my' is directly used through a 'getstatic'
 

compiler/testData/codegen/bytecodeText/redundantInitializer.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JVM_IR
 package a
 
 class A {

compiler/testData/codegen/bytecodeText/redundantInitializerNumber.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JVM_IR
 package a
 
 class A {