Modify how the -verify flag works.  Currently, the verification string and
diagnostic message are compared.  If either is a substring of the other, then
no error is given.  This gives rise to an unexpected case:

  // expect-error{{candidate function has different number of parameters}}

will match the following error messages from Clang:

  candidate function has different number of parameters (expected 1 but has 2)
  candidate function has different number of parameters

It will also match these other error messages:

  candidate function
  function has different number of parameters
  number of parameters

This patch will change so that the verification string must be a substring of
the diagnostic message before accepting.  Also, all the failing tests from this
change have been corrected.  Some stats from this cleanup:

87 - removed extra spaces around verification strings
70 - wording updates to diagnostics
40 - extra leading or trailing characters (typos, unmatched parens or quotes)
35 - diagnostic level was included (error:, warning:, or note:)
18 - flag name put in the warning (-Wprotocol)

llvm-svn: 146619
diff --git a/clang/test/Sema/overloadable-complex.c b/clang/test/Sema/overloadable-complex.c
index 770a972..efdeb8f 100644
--- a/clang/test/Sema/overloadable-complex.c
+++ b/clang/test/Sema/overloadable-complex.c
@@ -31,8 +31,8 @@
 int *promote_or_convert(long double _Complex) __attribute__((__overloadable__)); // expected-note 2 {{candidate function}} 
 
 void test_promote_or_convert(float f, float _Complex fc) {
-  char *cp = promote_or_convert(fc); // expected-error{{call to 'promote_or_convert' is ambiguous; candidates are:}}
-  int *ip2 = promote_or_convert(f); // expected-error{{call to 'promote_or_convert' is ambiguous; candidates are:}}
+  char *cp = promote_or_convert(fc); // expected-error{{call to 'promote_or_convert' is ambiguous}}
+  int *ip2 = promote_or_convert(f); // expected-error{{call to 'promote_or_convert' is ambiguous}}
 }
 
 char *promote_or_convert2(float) __attribute__((__overloadable__));