Switch c-index-test from clang_codeComplete() over to
clang_codeCompleteAt(). This uncovered a few issues with the latter:

  - ASTUnit wasn't saving/restoring diagnostic state appropriately between
    reparses and code completions.
  - "Overload" completions weren't being passed through to the client



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116241 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Index/complete-recovery.m b/test/Index/complete-recovery.m
index ef9f817..25ed0b1 100644
--- a/test/Index/complete-recovery.m
+++ b/test/Index/complete-recovery.m
@@ -16,20 +16,20 @@
 }
 @end
 
-// RUN: c-index-test -code-completion-at=%s:9:20 -Xclang -code-completion-patterns %s 2>%t | FileCheck -check-prefix=CHECK-CC1 %s
+// RUN: env CINDEXTEST_CODE_COMPLETE_PATTERNS=1 c-index-test -code-completion-at=%s:9:20 %s 2>%t | FileCheck -check-prefix=CHECK-CC1 %s
 // RUN: not grep error %t
 // CHECK-CC1: NotImplemented:{TypedText @encode}{LeftParen (}{Placeholder type-name}{RightParen )}
 // CHECK-CC1-NOT: NotImplemented:{TypedText _Bool}
 // CHECK-CC1: VarDecl:{ResultType A *}{TypedText a}
 // CHECK-CC1: NotImplemented:{TypedText sizeof}{LeftParen (}{Placeholder expression-or-type}{RightParen )}
 
-// RUN: c-index-test -code-completion-at=%s:10:24 -Xclang -code-completion-patterns %s | FileCheck -check-prefix=CHECK-CC2 %s
+// RUN: env CINDEXTEST_CODE_COMPLETE_PATTERNS=1 c-index-test -code-completion-at=%s:10:24 %s | FileCheck -check-prefix=CHECK-CC2 %s
 // CHECK-CC2: NotImplemented:{TypedText @encode}{LeftParen (}{Placeholder type-name}{RightParen )}
 // CHECK-CC2: NotImplemented:{TypedText _Bool}
 // CHECK-CC2: VarDecl:{ResultType A *}{TypedText a}
 // CHECK-CC2: NotImplemented:{TypedText sizeof}{LeftParen (}{Placeholder expression-or-type}{RightParen )}
-// RUN: c-index-test -code-completion-at=%s:12:11 -Xclang -code-completion-patterns %s | FileCheck -check-prefix=CHECK-CC3 %s
+// RUN: env CINDEXTEST_CODE_COMPLETE_PATTERNS=1 c-index-test -code-completion-at=%s:12:11 %s | FileCheck -check-prefix=CHECK-CC3 %s
 // CHECK-CC3: ObjCInstanceMethodDecl:{ResultType void}{TypedText method:}{Placeholder (int)} (17)
-// RUN: c-index-test -code-completion-at=%s:13:22 -Xclang -code-completion-patterns %s | FileCheck -check-prefix=CHECK-CC3 %s
-// RUN: c-index-test -code-completion-at=%s:14:16 -Xclang -code-completion-patterns %s | FileCheck -check-prefix=CHECK-CC3 %s
-// RUN: c-index-test -code-completion-at=%s:15:14 -Xclang -code-completion-patterns %s | FileCheck -check-prefix=CHECK-CC3 %s
+// RUN: env CINDEXTEST_CODE_COMPLETE_PATTERNS=1 c-index-test -code-completion-at=%s:13:22 %s | FileCheck -check-prefix=CHECK-CC3 %s
+// RUN: env CINDEXTEST_CODE_COMPLETE_PATTERNS=1 c-index-test -code-completion-at=%s:14:16 %s | FileCheck -check-prefix=CHECK-CC3 %s
+// RUN: env CINDEXTEST_CODE_COMPLETE_PATTERNS=1 c-index-test -code-completion-at=%s:15:14 %s | FileCheck -check-prefix=CHECK-CC3 %s