Fix a long standard problem with clang retaining "too much" sugar 
information about types.  We often print diagnostics where we say 
"foo_t" is bad, but the user doesn't know how foo_t is declared 
(because it is a typedef).  Fix this by expanding sugar when present
in a diagnostic (and not one of a few special cases, like vectors).

Before:
t.m:5:2: error: invalid operands to binary expression ('typeof(P)' and 'typeof(F)')
 MAX(P, F);
 ^~~~~~~~~
t.m:1:78: note: instantiated from:
#define MAX(A,B)    ({ __typeof__(A) __a = (A); __typeof__(B) __b = (B); __a < __b ? __b : __a; })
                                                                             ^

After:
t.m:5:2: error: invalid operands to binary expression ('typeof(P)' (aka 'struct mystruct') and 'typeof(F)' (aka 'float'))
 MAX(P, F);
 ^~~~~~~~~
t.m:1:78: note: instantiated from:
#define MAX(A,B)    ({ __typeof__(A) __a = (A); __typeof__(B) __b = (B); __a < __b ? __b : __a; })
                                                                             ^




git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65081 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaCXX/inherit.cpp b/test/SemaCXX/inherit.cpp
index 6c00218..7e04052 100644
--- a/test/SemaCXX/inherit.cpp
+++ b/test/SemaCXX/inherit.cpp
@@ -28,5 +28,5 @@
 typedef G G_copy_2;
 typedef G_copy G_copy_3;
 
-class H : G_copy, A, G_copy_2, // expected-error{{base class 'G_copy' specified more than once as a direct base class}}
-          public G_copy_3 { }; // expected-error{{base class 'G_copy' specified more than once as a direct base class}}
+class H : G_copy, A, G_copy_2, // expected-error{{base class 'G_copy' (aka 'class G') specified more than once as a direct base class}}
+          public G_copy_3 { }; // expected-error{{base class 'G_copy' (aka 'class G') specified more than once as a direct base class}}