Update tests for Docker and YAML

Author: krassowski

atest/01_Editor.robot

@@ -14,7 +14,7 @@ CSS
 
 Docker
     ${def} =    Set Variable    xpath://span[contains(@class, 'cm-string')][contains(text(), 'PLANET')]
-    Wait Until Keyword Succeeds    3x    100ms    Editor Shows Features for Language    Docker    Dockerfile    Diagnostics=Instruction has no arguments
+    Wait Until Keyword Succeeds    3x    100ms    Editor Shows Features for Language    Docker    Dockerfile    Diagnostics=Instructions should be written in uppercase letters
     ...    Jump to Definition=${def}    Rename=${def}
 
 JS
@@ -71,7 +71,7 @@ SQL
     Editor Shows Features for Language    SQL    example.sql    Diagnostics=Expected
 
 YAML
-    Editor Shows Features for Language    YAML    example.yaml    Diagnostics=duplicate key
+    Editor Shows Features for Language    YAML    example.yaml    Diagnostics=Map keys must be unique
 
 *** Keywords ***
 Editor Shows Features for Server

atest/07_Configuration.robot

@@ -16,7 +16,7 @@ YAML
     [Documentation]    Composer YAML files don't allow a "greetings" key
     Settings Should Change Editor Diagnostics    YAML    example.yaml    yaml-language-server
     ...    {"yaml.schemas": {"http://json.schemastore.org/composer": "*"}}
-    ...    duplicate key
+    ...    Map keys must be unique
     ...    Property greetings is not allowed.
 
 Markdown

atest/examples/Dockerfile

@@ -1,5 +1,5 @@
 FROM empty
-RUN
+run
 ARG PLANET="earth"
 ENV MY_PLANET="$PLANET"
 RUN echo Hello $MY_PLANET

atest/examples/composer-schema.yaml

@@ -1,4 +1,4 @@
 name: 0
 foo:
-    bar:
-    bar:
+    bar: 0
+    bar: 0

atest/examples/example.yaml

@@ -1,4 +1,4 @@
 greetings:
-    hello:
-    hello:
+    hello: 0
+    hello: 0
 well: