[ASTPrinter][SourceKit] Print 'Any' as a keyword.

It's treated as a keyword by syntactic highlighting, but wasn't annotated as a
keyword by code completion, cursor info, or doc info.

Resolves rdar://problem/61114942

Author: Nathan Hawes

lib/AST/ASTPrinter.cpp

@@ -4349,7 +4349,7 @@ class TypePrinter : public TypeVisitor<TypePrinter> {
       if (T->hasExplicitAnyObject())
         Printer << "AnyObject";
       else
-        Printer << "Any";
+        Printer.printKeyword("Any", Options);
     } else {
       interleave(T->getMembers(), [&](Type Ty) { visit(Ty); },
                  [&] { Printer << " & "; });

lib/AST/TypeRepr.cpp

@@ -546,7 +546,7 @@ CompositionTypeRepr *CompositionTypeRepr::create(const ASTContext &C,
 void CompositionTypeRepr::printImpl(ASTPrinter &Printer,
                                     const PrintOptions &Opts) const {
   if (getTypes().empty()) {
-    Printer << "Any";
+    Printer.printKeyword("Any", Opts);
   } else {
     interleave(getTypes(), [&](TypeRepr *T) { printTypeRepr(T, Printer, Opts);},
                [&] { Printer << " & "; });

test/IDE/complete_annotation.swift

@@ -49,7 +49,7 @@ func testGlobal() {
 // GLOBAL_EXPR-DAG: Keyword[#function]/None:            <name>#function</name>; name=#function
 // GLOBAL_EXPR-DAG: Decl[Module]/None:                  <name>Swift</name>; name=Swift
 // GLOBAL_EXPR-DAG: Decl[Struct]/OtherModule[Swift]:    <name>Int</name>; name=Int
-// GLOBAL_EXPR-DAG: Decl[FreeFunction]/OtherModule[Swift]: <name>print</name>(<callarg><callarg.label>_</callarg.label> <callarg.param>items</callarg.param>: <callarg.type>Any</callarg.type>...</callarg>, <callarg><callarg.label>to</callarg.label> <callarg.param>output</callarg.param>: &amp;<callarg.type><typeid.sys>TextOutputStream</typeid.sys></callarg.type></callarg>); name=print(items: Any..., to: &TextOutputStream)
+// GLOBAL_EXPR-DAG: Decl[FreeFunction]/OtherModule[Swift]: <name>print</name>(<callarg><callarg.label>_</callarg.label> <callarg.param>items</callarg.param>: <callarg.type><keyword>Any</keyword></callarg.type>...</callarg>, <callarg><callarg.label>to</callarg.label> <callarg.param>output</callarg.param>: &amp;<callarg.type><typeid.sys>TextOutputStream</typeid.sys></callarg.type></callarg>); name=print(items: Any..., to: &TextOutputStream)
 // GLOBAL_EXPR: End completions
 
 

test/SourceKit/CursorInfo/cursor_info.swift

@@ -228,6 +228,8 @@ enum E7: String {
     case b = "\u{66}"
 }
 
+func checkAnyIsAKeyword(x: Any) {}
+
 // REQUIRES: objc_interop
 // RUN: %empty-directory(%t.tmp)
 // RUN: %swiftc_driver -emit-module -o %t.tmp/FooSwiftModule.swiftmodule %S/Inputs/FooSwiftModule.swift
@@ -765,3 +767,7 @@ enum E7: String {
 
 // RUN: %sourcekitd-test -req=cursor -pos=227:14 %s -- -F %S/../Inputs/libIDE-mock-sdk -I %t.tmp %s | %FileCheck -check-prefix=CHECK94 %s
 // CHECK94: <empty cursor info; internal diagnostic: "Resolved to incomplete expression or statement.">
+
+// RUN:  %sourcekitd-test -req=cursor -pos=231:6 %s -- -F %S/../Inputs/libIDE-mock-sdk -I %t.tmp %s | %FileCheck -check-prefix=CHECK95 %s
+// CHECK95: <Declaration>func checkAnyIsAKeyword(x: Any)</Declaration>
+// CHECK95-NEXT: <decl.function.free><syntaxtype.keyword>func</syntaxtype.keyword> <decl.name>checkAnyIsAKeyword</decl.name>(<decl.var.parameter><decl.var.parameter.argument_label>x</decl.var.parameter.argument_label>: <decl.var.parameter.type><syntaxtype.keyword>Any</syntaxtype.keyword></decl.var.parameter.type></decl.var.parameter>)</decl.function.free>

test/SourceKit/DocSupport/Inputs/cake.swift

@@ -119,3 +119,5 @@ public protocol P {
 public extension P {
     func bar() where Self: Equatable {}
 }
+
+public func shouldPrintAnyAsKeyword(x: Any) {}

test/SourceKit/DocSupport/doc_clang_module.swift.response

@@ -197,6 +197,8 @@ extension S3 {
 
 func genfoo<T1, T2>(x ix: T1, y iy: T2) where T1 : cake.Prot, T2 : cake.C1, T1.Element == Int
 
+func shouldPrintAnyAsKeyword(x x: Any)
+
 
 [
   {
@@ -1918,6 +1920,31 @@ func genfoo<T1, T2>(x ix: T1, y iy: T2) where T1 : cake.Prot, T2 : cake.C1, T1.E
     key.usr: "s:Si",
     key.offset: 2408,
     key.length: 3
+  },
+  {
+    key.kind: source.lang.swift.syntaxtype.keyword,
+    key.offset: 2413,
+    key.length: 4
+  },
+  {
+    key.kind: source.lang.swift.syntaxtype.identifier,
+    key.offset: 2418,
+    key.length: 23
+  },
+  {
+    key.kind: source.lang.swift.syntaxtype.argument,
+    key.offset: 2442,
+    key.length: 1
+  },
+  {
+    key.kind: source.lang.swift.syntaxtype.parameter,
+    key.offset: 2444,
+    key.length: 1
+  },
+  {
+    key.kind: source.lang.swift.syntaxtype.keyword,
+    key.offset: 2447,
+    key.length: 3
   }
 ]
 [
@@ -3070,5 +3097,22 @@ func genfoo<T1, T2>(x ix: T1, y iy: T2) where T1 : cake.Prot, T2 : cake.C1, T1.E
         key.length: 2
       }
     ]
+  },
+  {
+    key.kind: source.lang.swift.decl.function.free,
+    key.name: "shouldPrintAnyAsKeyword(x:)",
+    key.usr: "s:4cake23shouldPrintAnyAsKeyword1xyyp_tF",
+    key.offset: 2413,
+    key.length: 38,
+    key.fully_annotated_decl: "<decl.function.free><syntaxtype.keyword>func</syntaxtype.keyword> <decl.name>shouldPrintAnyAsKeyword</decl.name>(<decl.var.parameter><decl.var.parameter.argument_label>x</decl.var.parameter.argument_label>: <decl.var.parameter.type><syntaxtype.keyword>Any</syntaxtype.keyword></decl.var.parameter.type></decl.var.parameter>)</decl.function.free>",
+    key.entities: [
+      {
+        key.kind: source.lang.swift.decl.var.local,
+        key.keyword: "x",
+        key.name: "x",
+        key.offset: 2447,
+        key.length: 3
+      }
+    ]
   }
 ]