chore(compilation): Improve Error and Trace Logging (#2688)

Add logs

Co-authored-by: Rouke Broersma <rouke.broersma@infosupport.com>

src/Stryker.Core/Stryker.Core/Compiling/CsharpCompilingProcess.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
@@ -74,6 +75,7 @@ public CompilingProcessResult Compile(IEnumerable<SyntaxTree> syntaxTrees, Strea
             {
                 _logger.LogError("Failed to build the mutated assembly due to unrecoverable error: {0}",
                     emitResult.Diagnostics.First(diagnostic => diagnostic.Location == Location.None && diagnostic.Severity == DiagnosticSeverity.Error));
+                DumpErrorDetails(emitResult.Diagnostics);
                 throw new CompilationException("General Build Failure detected.");
             }
 
@@ -154,7 +156,6 @@ private CSharpCompilation RunSourceGenerators(IAnalyzerResult analyzerResult, Co
                     null,
                     null),
                 options: emitOptions);
-
             LogEmitResult(emitResult);
 
             return (rollbackProcessResult, emitResult, retryCount+1);
@@ -168,7 +169,7 @@ private void LogEmitResult(EmitResult result)
 
                 foreach (var err in result.Diagnostics.Where(x => x.Severity is DiagnosticSeverity.Error))
                 {
-                    _logger.LogDebug("{0}, {1}", err?.GetMessage() ?? "No message", err?.Location.SourceTree?.FilePath ?? "Unknown filepath");
+                    _logger.LogDebug("{ErrorMessage}, {ErrorLocation}", err?.GetMessage() ?? "No message", err?.Location?.ToString() ?? "Unknown filepath");
                 }
             }
             else
@@ -177,6 +178,23 @@ private void LogEmitResult(EmitResult result)
             }
         }
 
+        private void DumpErrorDetails(IEnumerable<Diagnostic> diagnostics)
+        {
+            var message = $"An unrecoverable compilation error occurred:{Environment.NewLine}";
+            var materializedDiagnostics = diagnostics.ToArray();
+            if (!materializedDiagnostics.Any())
+            {
+                message += "Unfortunately there is no more info available, good luck!";
+            }
+
+            foreach (var diagnostic in materializedDiagnostics)
+            {
+                message += $"{diagnostic.Id}: {diagnostic}{Environment.NewLine}";
+            }
+
+            _logger.LogTrace(message);
+        }
+
         private static string ReadableNumber(int number) => number switch
         {
             1 => "first",