Add sema support for symbolic names in inline asm statements.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62441 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/asm.c b/test/Sema/asm.c
index d29335a..3bb7d78 100644
--- a/test/Sema/asm.c
+++ b/test/Sema/asm.c
@@ -10,7 +10,11 @@
   
   asm ("foo\n" : "=a" (f())); // expected-error {{invalid lvalue in asm output}}
   asm ("foo\n" : "=a" (i + 2)); // expected-error {{invalid lvalue in asm output}}
-  
+
+  asm ("foo\n" : [symbolic_name] "=a" (i) : "[symbolic_name]" (i));
+  asm ("foo\n" : "=a" (i) : "[" (i)); // expected-error {{invalid input constraint '[' in asm}}
+  asm ("foo\n" : "=a" (i) : "[foo" (i)); // expected-error {{invalid input constraint '[foo' in asm}}
+  asm ("foo\n" : "=a" (i) : "[symbolic_name]" (i)); // expected-error {{invalid input constraint '[symbolic_name]' in asm}}
 }
 
 void