Adds formatting issue analyzing in Omnisharp (VSCode) (#15809)

.editorconfig

@@ -196,7 +196,7 @@ csharp_preserve_single_line_blocks = true
 #dotnet_naming_style.begins_with_i.word_separator =
 #dotnet_naming_style.begins_with_i.capitalization = pascal_case
 
-
+dotnet_diagnostic.IDE0055.severity = warning
 
 dotnet_naming_rule.constants_rule.severity = warning
 dotnet_naming_rule.constants_rule.style = upper_camel_case_style

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "omnisharp.analyzeOpenDocumentsOnly": true
+}

omnisharp.json

@@ -0,0 +1,6 @@
+{
+    "RoslynExtensionsOptions": {
+        "DocumentAnalysisTimeoutMs": 600000,
+        "EnableAnalyzersSupport": true
+    }
+}