Migration to new backing field syntax

compiler/frontend/src/org/jetbrains/kotlin/cfg/pseudocode/instructions/InstructionWithNext.kt

@@ -25,7 +25,7 @@ public abstract class InstructionWithNext(
 ) : JetElementInstructionImpl(element, lexicalScope) {
     public var next: Instruction? = null
         set(value: Instruction?) {
-            $next = outgoingEdgeTo(value)
+            field = outgoingEdgeTo(value)
         }
 
     override val nextInstructions: Collection<Instruction>

compiler/frontend/src/org/jetbrains/kotlin/cfg/pseudocode/instructions/jumps/AbstractJumpInstruction.kt

@@ -31,7 +31,7 @@ public abstract class AbstractJumpInstruction(
 ) : JetElementInstructionImpl(element, lexicalScope), JumpInstruction {
     public var resolvedTarget: Instruction? = null
         set(value: Instruction?) {
-            $resolvedTarget = outgoingEdgeTo(value)
+            field = outgoingEdgeTo(value)
         }
 
     protected abstract fun createCopy(newLabel: Label, lexicalScope: LexicalScope): AbstractJumpInstruction

compiler/frontend/src/org/jetbrains/kotlin/cfg/pseudocode/instructions/special/LocalFunctionDeclarationInstruction.kt

@@ -33,7 +33,7 @@ public class LocalFunctionDeclarationInstruction(
 ) : InstructionWithNext(element, lexicalScope) {
     public var sink: SubroutineSinkInstruction? = null
         set(value: SubroutineSinkInstruction?) {
-            $sink = outgoingEdgeTo(value) as SubroutineSinkInstruction?
+            field = outgoingEdgeTo(value) as SubroutineSinkInstruction?
         }
 
     override val nextInstructions: Collection<Instruction>

compiler/frontend/src/org/jetbrains/kotlin/psi/JetCodeFragment.kt

@@ -93,7 +93,7 @@ public abstract class JetCodeFragment(
     override fun getSuperType() = superType
 
     override fun setSuperType(superType: PsiType?) {
-        $superType = superType
+        this.superType = superType
     }
 
     override fun importsToString(): String {