Generate meaningful bytecode names for extension receivers in INDY lambdas

compiler/testData/codegen/bytecodeText/invokedynamic/extensionReceiversNames.kt

@@ -0,0 +1,28 @@
+// LANGUAGE: +LightweightLambdas
+// TARGET_BACKEND: JVM_IR
+
+fun <T> block(t: T, f: T.() -> Unit) {
+    f.invoke(t)
+}
+
+fun test() {
+    block("first") place1@ {
+        block("second") place2@ {
+            // Breakpoint here
+            this@place1
+            this@place2
+        }
+    }
+}
+
+// JVM_IR_TEMPLATES
+// 2 INVOKEDYNAMIC
+// 0 receiver
+// 5 LOCALVARIABLE
+// 1 LOCALVARIABLE \$this\$place1
+// 1 LOCALVARIABLE \$this\$place2
+// 1 LOCALVARIABLE t
+// 1 LOCALVARIABLE f
+// 1 LOCALVARIABLE \$this_place1
+// 1 LDC "\$this\$place1"
+// 1 LDC "\$this\$place2"