Improve diagnosis of unknown template name.

When an undeclared identifier in a context that requires a type is followed by
'<', only look for type templates when typo-correcting, tweak the diagnostic
text to say that a template name (not a type name) was undeclared, and parse
the template arguments when recovering from the error.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@302732 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 3 insertions, 4 deletions

diff --git a/test/SemaTemplate/deduction-crash.cpp b/test/SemaTemplate/deduction-crash.cpp
index ff7421a910..c94c9db94e 100644
--- a/test/SemaTemplate/deduction-crash.cpp
+++ b/test/SemaTemplate/deduction-crash.cpp
@@ -2,7 +2,7 @@
 
 // Note that the error count below doesn't matter. We just want to
 // make sure that the parser doesn't crash.
-// CHECK: 16 errors
+// CHECK: 17 errors
 
 // PR7511
 template<a>
diff --git a/test/SemaTemplate/explicit-instantiation.cpp b/test/SemaTemplate/explicit-instantiation.cpp
index 010716dd14..42d9f4d332 100644
--- a/test/SemaTemplate/explicit-instantiation.cpp
+++ b/test/SemaTemplate/explicit-instantiation.cpp
@@ -95,7 +95,7 @@ namespace PR7622 {
   struct basic_streambuf;
 
   template<typename,typename>
-  struct basic_streambuf{friend bob<>()}; // expected-error{{unknown type name 'bob'}} \
+  struct basic_streambuf{friend bob<>()}; // expected-error{{no template named 'bob'}} \
                                           // expected-error{{expected member name or ';' after declaration specifiers}}
   template struct basic_streambuf<int>;
 }
diff --git a/test/SemaTemplate/ms-lookup-template-base-classes.cpp b/test/SemaTemplate/ms-lookup-template-base-classes.cpp
index 6afc709126..a41248ee1b 100644
--- a/test/SemaTemplate/ms-lookup-template-base-classes.cpp
+++ b/test/SemaTemplate/ms-lookup-template-base-classes.cpp
@@ -347,8 +347,7 @@ template <typename T> struct B : A<T> {
 };
 template <typename T> struct C : A<T> {
   // Incorrect form.
-  NameFromBase<T> m; // expected-error {{unknown type name 'NameFromBase'}}
-  //expected-error@-1 {{expected member name or ';' after declaration specifiers}}
+  NameFromBase<T> m; // expected-error {{no template named 'NameFromBase'}}
 };
 }