Reject continue/break statements within members of local functions nested within
loop and switch statements, by teaching Scope that a function scope never has
a continue/break parent for the purposes of control flow. Remove the hack in
block and lambda expressions which worked around this by pretending that such
expressions were continue/break scopes.

Remove Scope::ControlParent, since it's unused.

In passing, teach default statements to recover properly from a missing ';', and
add a fixit for same to both default and case labels (the latter already
recovered correctly).


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150776 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaCXX/switch.cpp b/test/SemaCXX/switch.cpp
index 5fd6b1a..517faa9 100644
--- a/test/SemaCXX/switch.cpp
+++ b/test/SemaCXX/switch.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -verify %s
+// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
 
 void test() {
   bool x = true;
@@ -64,3 +64,24 @@
   case 0: ;
   }
 }
+
+void local_class(int n) {
+  for (;;) switch (n) {
+  case 0:
+    struct S {
+      void f() {
+        case 1: // expected-error {{'case' statement not in switch statement}}
+        break; // expected-error {{'break' statement not in loop or switch statement}}
+        default: // expected-error {{'default' statement not in switch statement}}
+        continue; // expected-error {{'continue' statement not in loop statement}}
+      }
+    };
+    S().f();
+    []{
+      case 2: // expected-error {{'case' statement not in switch statement}}
+      break; // expected-error {{'break' statement not in loop or switch statement}}
+      default: // expected-error {{'default' statement not in switch statement}}
+      continue; // expected-error {{'continue' statement not in loop statement}}
+    }();
+  }
+}