Provide additional information about missing supertypes

Add -X flag to report extra compiler diagnostics which migth break compatibility.
Use the flag to unconditionally check constructors without fear of
prematurely evaluating lazy supertypes.

KT-19234
KT-42404
KT-44583

compiler/cli/src/org/jetbrains/kotlin/cli/common/messages/AnalyzerWithCompilerReport.kt

@@ -26,6 +26,7 @@ import org.jetbrains.kotlin.cli.common.CLIConfigurationKeys
 import org.jetbrains.kotlin.cli.common.messages.CompilerMessageSeverity.*
 import org.jetbrains.kotlin.codegen.state.IncompatibleClassTrackerImpl
 import org.jetbrains.kotlin.config.CompilerConfiguration
+import org.jetbrains.kotlin.config.LanguageFeature
 import org.jetbrains.kotlin.config.LanguageVersionSettings
 import org.jetbrains.kotlin.config.languageVersionSettings
 import org.jetbrains.kotlin.diagnostics.*
@@ -72,6 +73,9 @@ class AnalyzerWithCompilerReport(
                     .append(", unresolved supertypes: ").append(unresolved!!.joinToString())
                     .append("\n")
             }
+            if (!languageVersionSettings.supportsFeature(LanguageFeature.ExtendedCompilerChecks)) {
+                message.append("Adding -Xextended-compiler-checks argument might provide additional information.\n")
+            }
             messageCollector.report(ERROR, message.toString())
         }
     }