Use class name instead internal name in coroutines debug metadata

I.e. instead of slashes use dots in fqnames.

 #KT-28237 Fixed

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

@@ -284,7 +284,7 @@ class CoroutineTransformerMethodVisitor(
             variablesMapping.forEach { v.visit(null, it.variableName) }
         }.visitEnd()
         metadata.visit(COROUTINES_METADATA_METHOD_NAME_JVM_NAME, methodNode.name)
-        metadata.visit(COROUTINES_METADATA_CLASS_NAME_JVM_NAME, containingClassInternalName)
+        metadata.visit(COROUTINES_METADATA_CLASS_NAME_JVM_NAME, Type.getObjectType(containingClassInternalName).className)
         @Suppress("ConstantConditionIf")
         if (COROUTINES_DEBUG_METADATA_VERSION != 1) {
             metadata.visit(COROUTINES_METADATA_VERSION_JVM_NAME, COROUTINES_DEBUG_METADATA_VERSION)

compiler/testData/codegen/box/coroutines/debug/fqName.kt

@@ -0,0 +1,41 @@
+// !LANGUAGE: +ReleaseCoroutines
+
+// IGNORE_BACKEND: JVM_IR
+// TARGET_BACKEND: JVM
+// WITH_RUNTIME
+// FULL_JDK
+// WITH_COROUTINES
+
+@file:Suppress("INVISIBLE_REFERENCE", "INVISIBLE_MEMBER", "CANNOT_OVERRIDE_INVISIBLE_MEMBER")
+
+package some.long.name
+
+import helpers.*
+import kotlin.coroutines.*
+import kotlin.coroutines.intrinsics.*
+import kotlin.coroutines.jvm.internal.*
+
+suspend fun dummy() {}
+
+class Test {
+    suspend fun getStackTraceElement(): StackTraceElement {
+        dummy() // to force state-machine generation
+        return suspendCoroutineUninterceptedOrReturn<StackTraceElement> {
+            (it as BaseContinuationImpl).getStackTraceElement()
+        }
+    }
+}
+
+fun builder(c: suspend () -> Unit) {
+    c.startCoroutine(EmptyContinuation)
+}
+
+fun box(): String {
+    var res = "OK"
+    builder {
+        if (Test().getStackTraceElement().className != "some.long.name.Test") {
+            res = Test().getStackTraceElement().className
+        }
+    }
+    return res
+}

compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java

@@ -6592,6 +6592,11 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
                 runTest("compiler/testData/codegen/box/coroutines/debug/firstSuspensionPoint.kt");
             }
 
+            @TestMetadata("fqName.kt")
+            public void testFqName() throws Exception {
+                runTest("compiler/testData/codegen/box/coroutines/debug/fqName.kt");
+            }
+
             @TestMetadata("runtimeDebugMetadata.kt")
             public void testRuntimeDebugMetadata() throws Exception {
                 runTest("compiler/testData/codegen/box/coroutines/debug/runtimeDebugMetadata.kt");

compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java

@@ -6592,6 +6592,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
                 runTest("compiler/testData/codegen/box/coroutines/debug/firstSuspensionPoint.kt");
             }
 
+            @TestMetadata("fqName.kt")
+            public void testFqName() throws Exception {
+                runTest("compiler/testData/codegen/box/coroutines/debug/fqName.kt");
+            }
+
             @TestMetadata("runtimeDebugMetadata.kt")
             public void testRuntimeDebugMetadata() throws Exception {
                 runTest("compiler/testData/codegen/box/coroutines/debug/runtimeDebugMetadata.kt");

compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java

@@ -6592,6 +6592,11 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
                 runTest("compiler/testData/codegen/box/coroutines/debug/firstSuspensionPoint.kt");
             }
 
+            @TestMetadata("fqName.kt")
+            public void testFqName() throws Exception {
+                runTest("compiler/testData/codegen/box/coroutines/debug/fqName.kt");
+            }
+
             @TestMetadata("runtimeDebugMetadata.kt")
             public void testRuntimeDebugMetadata() throws Exception {
                 runTest("compiler/testData/codegen/box/coroutines/debug/runtimeDebugMetadata.kt");