Generate line numbers for RHS of elvis expression if both LHS and RHS

are at the same line.
 #KT-32689 Fixed

compiler/backend/src/org/jetbrains/kotlin/codegen/ExpressionCodegen.java

@@ -3809,6 +3809,11 @@ public class ExpressionCodegen extends KtVisitor<StackValue, StackValue> impleme
             v.goTo(end);
 
             v.mark(ifNull);
+            Integer leftLineNumber = CodegenUtil.getLineNumberForElement(left, false);
+            Integer rightLineNumber = CodegenUtil.getLineNumberForElement(expression.getRight(), false);
+            if (rightLineNumber != null && rightLineNumber.equals(leftLineNumber)) {
+                v.visitLineNumber(rightLineNumber, ifNull);
+            }
             v.pop();
             gen(expression.getRight(), exprType, exprKotlinType);
             v.mark(end);

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

@@ -0,0 +1,42 @@
+// IGNORE_BACKEND: JVM_IR
+// TARGET_BACKEND: JVM
+// WITH_RUNTIME
+// WITH_COROUTINES
+// FULL_JDK
+
+import helpers.*
+import kotlin.coroutines.*
+import kotlin.coroutines.intrinsics.*
+
+fun builder(c: suspend () -> Unit) {
+    c.startCoroutine(EmptyContinuation)
+}
+
+suspend fun returnsNull() = null
+
+fun withLineBreak() = builder {
+    returnsNull()
+        ?: throw RuntimeException()
+}
+
+fun withoutLineBreak() = builder {
+    returnsNull() ?: throw RuntimeException()
+}
+
+fun box(): String {
+    try {
+        withLineBreak()
+        return "FAIL 0"
+    } catch (e: RuntimeException) {
+        if (e.stackTrace[0].lineNumber != 19) return "FAIL 1 ${e.stackTrace[0].lineNumber}"
+    }
+
+    try {
+        withoutLineBreak()
+        return "FAIL 2"
+    } catch (e: RuntimeException) {
+        if (e.stackTrace[0].lineNumber != 23) return "FAIL 3 ${e.stackTrace[0].lineNumber}"
+    }
+
+    return "OK"
+}

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

@@ -6790,6 +6790,11 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
                 runTest("compiler/testData/codegen/box/coroutines/debug/debuggerMetadata.kt");
             }
 
+            @TestMetadata("elvisLineNumber.kt")
+            public void testElvisLineNumber() throws Exception {
+                runTest("compiler/testData/codegen/box/coroutines/debug/elvisLineNumber.kt");
+            }
+
             @TestMetadata("firstSuspensionPoint.kt")
             public void testFirstSuspensionPoint() throws Exception {
                 runTest("compiler/testData/codegen/box/coroutines/debug/firstSuspensionPoint.kt");

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

@@ -6790,6 +6790,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
                 runTest("compiler/testData/codegen/box/coroutines/debug/debuggerMetadata.kt");
             }
 
+            @TestMetadata("elvisLineNumber.kt")
+            public void testElvisLineNumber() throws Exception {
+                runTest("compiler/testData/codegen/box/coroutines/debug/elvisLineNumber.kt");
+            }
+
             @TestMetadata("firstSuspensionPoint.kt")
             public void testFirstSuspensionPoint() throws Exception {
                 runTest("compiler/testData/codegen/box/coroutines/debug/firstSuspensionPoint.kt");

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

@@ -6245,6 +6245,11 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
                 runTest("compiler/testData/codegen/box/coroutines/debug/debuggerMetadata.kt");
             }
 
+            @TestMetadata("elvisLineNumber.kt")
+            public void testElvisLineNumber() throws Exception {
+                runTest("compiler/testData/codegen/box/coroutines/debug/elvisLineNumber.kt");
+            }
+
             @TestMetadata("firstSuspensionPoint.kt")
             public void testFirstSuspensionPoint() throws Exception {
                 runTest("compiler/testData/codegen/box/coroutines/debug/firstSuspensionPoint.kt");