Additional improvements for PT-140709005

For missing properties in toplevel nodes, place the error marker at the
end of the document.

vscode-extensions/commons/commons-language-server/src/main/java/org/springframework/ide/vscode/commons/languageserver/util/DocumentRegion.java

@@ -283,4 +283,11 @@ public class DocumentRegion implements CharSequence {
 		return false;
 	}
 
+	/**
+	 * Create a document region of lenght 0 at the every end of the document.
+	 */
+	public static DocumentRegion endOf(IDocument doc) {
+		return new DocumentRegion(doc, doc.getLength(), doc.getLength());
+	}
+
 }

vscode-extensions/commons/commons-yaml/src/main/java/org/springframework/ide/vscode/commons/yaml/reconcile/YamlSchemaProblems.java

@@ -123,6 +123,8 @@ public class YamlSchemaProblems {
 					return problem(MISSING_PROPERTY, msg, underline);
 				}
 			}
+		} else if (parent==null) {
+			return problem(MISSING_PROPERTY, msg, DocumentRegion.endOf(doc));
 		}
 		return problem(MISSING_PROPERTY, msg, map);
 	}

vscode-extensions/commons/language-server-test-harness/src/main/java/org/springframework/ide/vscode/languageserver/testharness/Editor.java

@@ -619,4 +619,15 @@ public class Editor {
 		return languageId;
 	}
 
+	/**
+	 * Verifies that a given Range corresponds with the end of the document in the editor.
+	 */
+	public void assertIsEndOfFile(Range range) {
+		int documentLen = document.getText().length();
+		int start = document.toOffset(range.getStart());
+		int end = document.toOffset(range.getEnd());
+		assertEquals(documentLen, start);
+		assertEquals(documentLen, end);
+	}
+
 }