Debugger: Fix lvalue evaluation (KT-11663, KT-19980)

idea/testData/debugger/tinyApp/src/evaluate/multipleBreakpoints/mutations.kt

@@ -0,0 +1,24 @@
+package mutations
+
+fun main() {
+    var a = 5
+    val b = 3
+
+    //Breakpoint!
+    val x = 0
+
+    //Breakpoint!
+    val y = 0
+
+    //Breakpoint!
+    val z = 0
+}
+
+// EXPRESSION: a = 100
+// RESULT: VOID_VALUE
+
+// EXPRESSION: b = 200
+// RESULT: VOID_VALUE
+
+// EXPRESSION: a + b
+// RESULT: 300: I

idea/testData/debugger/tinyApp/src/evaluate/multipleBreakpoints/mutations.out

@@ -0,0 +1,14 @@
+LineBreakpoint created at mutations.kt:8
+LineBreakpoint created at mutations.kt:11
+LineBreakpoint created at mutations.kt:14
+Run Java
+Connected to the target VM
+mutations.kt:8
+Compile bytecode for a = 100
+mutations.kt:11
+Compile bytecode for b = 200
+mutations.kt:14
+Compile bytecode for a + b
+Disconnected from the target VM
+
+Process finished with exit code 0