Generate do-while condition within loop body scope

compiler/testData/ir/irText/declarations/localVarInDoWhile.kt

@@ -0,0 +1,5 @@
+fun foo() {
+    do {
+        val x = 42
+    } while (x != 42)
+}

compiler/testData/ir/irText/declarations/localVarInDoWhile.txt

@@ -0,0 +1,12 @@
+FILE /localVarInDoWhile.kt
+  FUN public fun foo(): kotlin.Unit
+    BLOCK_BODY
+      BLOCK type=kotlin.Unit origin=null
+        DO_WHILE label=null origin=DO_WHILE_LOOP
+          body: COMPOSITE type=kotlin.Unit origin=null
+            VAR val x: kotlin.Int = 42
+              CONST Int type=kotlin.Int value='42'
+          condition: CALL 'NOT(Boolean): Boolean' type=kotlin.Boolean origin=EXCLEQ
+            arg0: CALL 'EQEQ(Any?, Any?): Boolean' type=kotlin.Boolean origin=EXCLEQ
+              arg0: GET_VAR 'x: Int' type=kotlin.Int origin=null
+              arg1: CONST Int type=kotlin.Int value='42'