Correct behaviour for break / continue inside function call arguments, including multiple ones. Additional tests.

compiler/testData/diagnostics/tests/smartCasts/loops/safeCallInsideDoWhile.kt

@@ -0,0 +1,12 @@
+fun foo(x: String): String? = x
+
+fun calc(x: String?): Int {
+    do {
+        // Smart cast because of x!! in receiver
+        foo(x!!)?.subSequence(0, <!DEBUG_INFO_SMARTCAST!>x<!>.length())
+        // Smart cast because of x!! in receiver
+        if (<!DEBUG_INFO_SMARTCAST!>x<!>.length() == 0) break
+    } while (true)
+    // Here x is also not null
+    return <!DEBUG_INFO_SMARTCAST!>x<!>.length()
+}