add comments for the various AssignConvertType's, and split int->pointer from pointer->int.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@45591 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Parser/implicit-casts.c b/test/Parser/implicit-casts.c
index 3d05526..1636f49 100644
--- a/test/Parser/implicit-casts.c
+++ b/test/Parser/implicit-casts.c
@@ -14,7 +14,7 @@
 }
 int test3() {
   int a[2];
-  a[0] = test3; // expected-warning{{incompatible pointer/int conversion assigning 'int (void)', expected 'int'}}
+  a[0] = test3; // expected-warning{{incompatible pointer to integer conversion assigning 'int (void)', expected 'int'}}
 }
 short x; void test4(char c) { x += c; }
 int y; void test5(char c) { y += c; }