Merge pull request #3295 from masatake/ypath

Yaml,OpenAPI: make OpenAPI parser's stack related code reusable

Author: masatake

Units/parser-openapi.r/openapi.d/expected.tags

@@ -7,3 +7,5 @@ NullableFieldStringEnum	input.yaml	/^        NullableFieldStringEnum:$/;"	d
 CustomHeader	input.yaml	/^        CustomHeader:$/;"	P
 Response1	input.yaml	/^        Response1:$/;"	R
 Response2	input.yaml	/^        Response2:$/;"	R
+android_handler	input.yaml	/^  - name: android_handler$/;"	T
+ios_handler	input.yaml	/^  - name: ios_handler$/;"	T

Units/parser-openapi.r/openapi.d/input.yaml

@@ -53,3 +53,9 @@ components:
                     schema:
                         type: object
                         properties: {}
+
+tags:
+  - name: android_handler
+    description: Handler for Android clients
+  - name: ios_handler
+    description: Handler for iOS clients