Attempt typo correction for function calls with the wrong number of arguments.

Combined with typo correction's new ability to apply global/absolute nested
name specifiers to possible corrections, cases such as in PR12287 where the
desired function is being shadowed by a lexically closer function with the
same name but a different number of parameters will now include a FixIt.

On a side note, since the test for this change caused
test/SemaCXX/typo-correction.cpp to exceed the typo correction limit for
a single file, I've included a test case for exceeding the limit and added
some comments to both the original and part two of typo-correction.cpp
warning future editors of the files about the limit.

llvm-svn: 185881

1 files changed, 8 insertions, 0 deletions

diff --git a/clang/test/FixIt/typo.cpp b/clang/test/FixIt/typo.cpp
index 87df1c07f34..2a743991be4 100644
--- a/clang/test/FixIt/typo.cpp
+++ b/clang/test/FixIt/typo.cpp
@@ -127,3 +127,11 @@ void func2() {
   //        to replace base::i with derived::i as we would for other qualified name misspellings.
   // d.base::i = 3;
 }
+
+class A {
+  void bar(int);
+};
+void bar(int, int);  // expected-note{{'::bar' declared here}}
+void A::bar(int x) {
+  bar(x, 5);  // expected-error{{too many arguments to function call, expected 1, have 2; did you mean '::bar'?}}
+}