[bazel] Add Macro related libraries (swiftlang#1499)

Author: keith

BUILD.bazel

@@ -14,13 +14,42 @@ swift_syntax_library(
     ],
 )
 
+swift_syntax_library(
+    name = "SwiftCompilerPlugin",
+    deps = [
+        ":SwiftCompilerPluginMessageHandling",
+        ":SwiftSyntaxMacros",
+    ],
+)
+
+swift_syntax_library(
+    name = "SwiftCompilerPluginMessageHandling",
+    deps = [
+        ":SwiftDiagnostics",
+        ":SwiftOperators",
+        ":SwiftParser",
+        ":SwiftSyntax",
+        ":SwiftSyntaxMacros",
+    ],
+)
+
 swift_syntax_library(
     name = "SwiftDiagnostics",
     deps = [
         ":SwiftSyntax",
     ],
 )
 
+swift_syntax_library(
+    name = "SwiftSyntaxMacros",
+    deps = [
+        ":SwiftDiagnostics",
+        ":SwiftParser",
+        ":SwiftSyntax",
+        ":SwiftSyntaxBuilder",
+    ],
+)
+
 swift_syntax_library(
     name = "SwiftParser",
     deps = [