[Core] Prevent NRE. If we have no error code, then there's not much we can log about it anyway

Therzok · Therzok · commit 03833e08aeb5 · 2019-10-23T20:27:31.000+03:00
diff --git a/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/SolutionItem.cs b/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/SolutionItem.cs
@@ -1895,6 +1895,9 @@ public bool Cancelled {
 
 		public void RegisterError(string errorCode)
 		{
+			if (errorCode == null)
+				return;
+
 			if (errors == null) {
 				errors = new Dictionary<string, int> ();
 				SetProperty (errors, "Errors");

Original file line number	Diff line number	Diff line change
`@@ -1895,6 +1895,9 @@ public bool Cancelled {`
`1895`	`1895`
`1896`	`1896`	`public void RegisterError(string errorCode)`
`1897`	`1897`	`{`
	`1898`	`+ if (errorCode == null)`
	`1899`	`+ return;`
	`1900`	`+`
`1898`	`1901`	`if (errors == null) {`
`1899`	`1902`	`errors = new Dictionary<string, int> ();`
`1900`	`1903`	`SetProperty (errors, "Errors");`