Minor: Extract a const for continuation variable name

compiler/backend/src/org/jetbrains/kotlin/codegen/coroutines/CoroutineTransformerMethodVisitor.kt

@@ -322,7 +322,7 @@ class CoroutineTransformerMethodVisitor(
         methodNode.instructions.insert(methodNode.instructions.last, endLabel)
         methodNode.localVariables.add(
             LocalVariableNode(
-                "\$continuation",
+                CONTINUATION_VARIABLE_NAME,
                 languageVersionSettings.continuationAsmType().descriptor,
                 null,
                 startLabel,

compiler/backend/src/org/jetbrains/kotlin/codegen/coroutines/coroutineCodegenUtil.kt

@@ -124,6 +124,8 @@ val INITIAL_SUSPEND_DESCRIPTOR_FOR_DO_RESUME = object : CallableDescriptor.UserD
 
 val CONTINUATION_PARAMETER_NAME = Name.identifier("continuation")
 
+const val CONTINUATION_VARIABLE_NAME = "\$continuation"
+
 // Resolved calls to suspension function contain descriptors as they visible within coroutines:
 // E.g. `fun <V> await(f: CompletableFuture<V>): V` instead of `fun <V> await(f: CompletableFuture<V>, machine: Continuation<V>): Unit`
 // See `createJvmSuspendFunctionView` and it's usages for clarification

idea/idea-jvm/src/org/jetbrains/kotlin/idea/debugger/KotlinCoroutinesAsyncStackTraceProvider.kt

@@ -18,6 +18,7 @@ import com.intellij.debugger.memory.utils.StackFrameItem
 import com.intellij.debugger.ui.impl.watch.ValueDescriptorImpl
 import com.intellij.xdebugger.frame.XNamedValue
 import com.sun.jdi.*
+import org.jetbrains.kotlin.codegen.coroutines.CONTINUATION_VARIABLE_NAME
 import org.jetbrains.kotlin.idea.debugger.evaluate.LOG
 import org.jetbrains.kotlin.idea.debugger.evaluate.VariableFinder.Companion.SUSPEND_LAMBDA_CLASSES
 import org.jetbrains.kotlin.idea.debugger.evaluate.getInvokePolicy
@@ -91,7 +92,7 @@ class KotlinCoroutinesAsyncStackTraceProvider : AsyncStackTraceProvider {
             return null
         }
 
-        val continuationVariable = frameProxy.safeVisibleVariableByName("\$continuation") ?: return null
+        val continuationVariable = frameProxy.safeVisibleVariableByName(CONTINUATION_VARIABLE_NAME) ?: return null
         val continuation = frameProxy.getValue(continuationVariable) as? ObjectReference ?: return null
 
         return collectFrames(continuation)

idea/idea-jvm/src/org/jetbrains/kotlin/idea/debugger/evaluate/VariableFinder.kt

@@ -293,7 +293,7 @@ class VariableFinder private constructor(private val context: EvaluationContextI
             return null
         }
 
-        val continuationVariable = frameProxy.safeVisibleVariableByName("\$continuation") ?: return null
+        val continuationVariable = frameProxy.safeVisibleVariableByName(CONTINUATION_VARIABLE_NAME) ?: return null
         val continuation = frameProxy.getValue(continuationVariable) as? ObjectReference ?: return null
         return findCoroutineContextForContinuation(continuation)
     }