[clang] [clang][ExtractAPI] emit correct spelling for type aliases (PR #134007)

[Yanzuo Liu via cfe-commits]

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@@ -0,0 +1,56 @@
+// RUN: rm -rf %t
+// RUN: %clang_cc1 -extract-api --pretty-sgf --emit-sgf-symbol-labels-for-testing \
+// RUN:   --product-name=TypeAlias -triple arm64-apple-macosx -x c++-header %s -o %t/type-alias.symbols.json -verify
+
+// RUN: FileCheck %s --input-file %t/type-alias.symbols.json --check-prefix MYALIAS
+using MyAlias = int;
+//MYALIAS-LABEL "!testLabel": "c:@MYALIAS"
+//MYALIAS:       "accessLevel": "public",
+//MYALIAS:       "declarationFragments": [
+//MYALIAS-NEXT:    {
+//MYALIAS-NEXT:      "kind": "keyword",
+//MYALIAS-NEXT:      "spelling": "using"
+//MYALIAS-NEXT:    },
+//MYALIAS-NEXT:    {
+//MYALIAS-NEXT:      "kind": "text",
+//MYALIAS-NEXT:      "spelling": " "
+//MYALIAS-NEXT:    },
+//MYALIAS-NEXT:    {
+//MYALIAS-NEXT:      "kind": "identifier",
+//MYALIAS-NEXT:      "spelling": "MyAlias"
+//MYALIAS-NEXT:    },
+//MYALIAS-NEXT:    {
+//MYALIAS-NEXT:      "kind": "text",
+//MYALIAS-NEXT:      "spelling": " = "
+//MYALIAS-NEXT:    },
+//MYALIAS-NEXT:    {
+//MYALIAS-NEXT:      "kind": "typeIdentifier",
+//MYALIAS-NEXT:      "preciseIdentifier": "c:I",
+//MYALIAS-NEXT:      "spelling": "int"
+//MYALIAS-NEXT:    },
+//MYALIAS-NEXT:    {
+//MYALIAS-NEXT:      "kind": "text",
+//MYALIAS-NEXT:      "spelling": ";"
+//MYALIAS-NEXT:    }
+//MYALIAS:       "kind": {
+//MYALIAS-NEXT:      "displayName": "Type Alias",
+//MYALIAS-NEXT:      "identifier": "c++.typealias"
+//MYALIAS:       names": {
+//MYALIAS-NEXT:    "navigator": [
+//MYALIAS-NEXT:      {
+//MYALIAS-NEXT:        "kind": "identifier",
+//MYALIAS-NEXT:        "spelling": "MyAlias"
+//MYALIAS-NEXT:      }
+//MYALIAS-NEXT:    ],
+//MYALIAS-NEXT:      "subHeading": [
+//MYALIAS-NEXT:        {
+//MYALIAS-NEXT:          "kind": "identifier",
+//MYALIAS-NEXT:          "spelling": "MyAlias"
+//MYALIAS-NEXT:        }
+//MYALIAS-NEXT:    ],
+//MYALIAS-NEXT:    "title": "MyAlias"
+//MYALIAS:       "pathComponents": [
+//MYALIAS-NEXT:    "MyAlias"
+//MYALIAS-NEXT:  ]
+
+// expected-no-diagnostics
----------------
zwuis wrote:

nit: add a new line charactor at end of file

https://github.com/llvm/llvm-project/pull/134007