Don't try to typo-correct 'super' in an objc method.

This created 2 issues:

1) Performance issue, since typo-correction with PCH/modules is rather expensive.
2) Correctness issue, since if it managed to "correct" 'super' then bogus compiler errors would
be emitted, like this:

3.m:8:3: error: unknown type name 'super'; did you mean 'super1'?
  super.x = 0;
  ^~~~~
  super1
t3.m:5:13: note: 'super1' declared here
typedef int super1;
            ^
t3.m:8:8: error: expected identifier or '('
  super.x = 0;
       ^

llvm-svn: 177126

1 files changed, 21 insertions, 0 deletions

diff --git a/clang/test/SemaObjC/typo-correction.m b/clang/test/SemaObjC/typo-correction.m
new file mode 100644
index 00000000000..cb2c91bb76c
--- /dev/null
+++ b/clang/test/SemaObjC/typo-correction.m
@@ -0,0 +1,21 @@
+// RUN: %clang_cc1 %s -verify -fsyntax-only -Wspellcheck
+
+@interface B
+@property int x;
+@end
+
+@interface S : B
+@end
+
+// Spell-checking 'undefined' is ok.
+undefined var; // expected-warning {{spell-checking initiated}} \
+               // expected-error {{unknown type name}}
+
+typedef int super1;
+@implementation S
+-(void)foo {
+  // Spell-checking 'super' is not ok.
+  super.x = 0;
+  self.x = 0;
+}
+@end