Fix a couple of bugs, add some new cool stuff.
1. Fix a todo in Parser::ParseTag, to recover better. On code like
that in test/Sema/decl-invalid.c it causes us to return a single
error instead of multiple.
2. Fix an error in Sema::ParseDeclarator, where it would crash if the
declarator didn't have an identifier. Instead, diagnose the problem.
3. Start adding infrastructure to track the range of locations covered
by a declspec or declarator. This is mostly implemented for declspec,
but could be improved, it is missing for declarator.
Thanks to Neil for pointing out this crash.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40482 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/switch-duplicate-defaults.c b/test/Sema/switch-duplicate-defaults.c
new file mode 100644
index 0000000..31d46a1
--- /dev/null
+++ b/test/Sema/switch-duplicate-defaults.c
@@ -0,0 +1,10 @@
+// RUN: clang -parse-ast-check %s
+
+void f (int z) {
+ switch(z) {
+ default: // expected-error {{first label is here}}
+ default: // expected-error {{multiple default labels in one switch}}
+ break;
+ }
+}
+