[clang-format] Add a few more Core Graphics identifiers to ObjC heuristic

Summary:
We received reports of the Objective-C style guesser getting a false
negative on header files like:

CGSize SizeOfThing(MyThing thing);

This adds more Core Graphics identifiers to the Objective-C style
guesser.

Test Plan: New tests added. Ran tests with:
  % make -j12 FormatTests && ./tools/clang/unittests/Format/FormatTests

Reviewers: jolesiak, djasper

Reviewed By: jolesiak, djasper

Subscribers: krasimir, klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D44632

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@328175 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Format/Format.cpp

@@ -1449,6 +1449,19 @@ private:
     // Keep this array sorted, since we are binary searching over it.
     static constexpr llvm::StringLiteral FoundationIdentifiers[] = {
         "CGFloat",
+        "CGPoint",
+        "CGPointMake",
+        "CGPointZero",
+        "CGRect",
+        "CGRectEdge",
+        "CGRectInfinite",
+        "CGRectMake",
+        "CGRectNull",
+        "CGRectZero",
+        "CGSize",
+        "CGSizeMake",
+        "CGVector",
+        "CGVectorMake",
         "NSAffineTransform",
         "NSArray",
         "NSAttributedString",
@@ -1497,6 +1510,8 @@ private:
         "NSURLQueryItem",
         "NSUUID",
         "NSValue",
+        "UIImage",
+        "UIView",
     };
 
     for (auto &Line : AnnotatedLines) {

unittests/Format/FormatTest.cpp

@@ -12108,6 +12108,12 @@ TEST_F(FormatTest, FileAndCode) {
   EXPECT_EQ(FormatStyle::LK_ObjC, guessLanguage("foo.h", "@interface Foo\n@end\n"));
   EXPECT_EQ(FormatStyle::LK_Cpp, guessLanguage("foo", ""));
   EXPECT_EQ(FormatStyle::LK_ObjC, guessLanguage("foo", "@interface Foo\n@end\n"));
+  EXPECT_EQ(FormatStyle::LK_ObjC,
+            guessLanguage("foo.h", "int DoStuff(CGRect rect);\n"));
+  EXPECT_EQ(
+      FormatStyle::LK_ObjC,
+      guessLanguage("foo.h",
+                    "#define MY_POINT_MAKE(x, y) CGPointMake((x), (y));\n"));
 }
 
 TEST_F(FormatTest, GuessLanguageWithCpp11AttributeSpecifiers) {