A quick fix to replace tuples (expressions and types) by Unit, Pair and Triple

Changes are made to all files in the project
 This quick-fix is to be removed in the next milestone

 #KT-2358 In Progress

compiler/frontend/src/org/jetbrains/jet/lang/diagnostics/Errors.java

@@ -47,6 +47,9 @@ import static org.jetbrains.jet.lang.diagnostics.Severity.WARNING;
  */
 public interface Errors {
 
+    // TODO: Temporary error message: to deprecate tuples we report this error and provide a quick fix
+    SimpleDiagnosticFactory<PsiElement> TUPLES_ARE_NOT_SUPPORTED = SimpleDiagnosticFactory.create(ERROR);
+
     DiagnosticFactory1<JetFile, Throwable> EXCEPTION_WHILE_ANALYZING = DiagnosticFactory1.create(ERROR);
 
     UnresolvedReferenceDiagnosticFactory UNRESOLVED_REFERENCE = UnresolvedReferenceDiagnosticFactory.create();

compiler/frontend/src/org/jetbrains/jet/lang/diagnostics/rendering/DefaultErrorMessages.java

@@ -45,6 +45,10 @@ public class DefaultErrorMessages {
     public static final DiagnosticRenderer<Diagnostic> RENDERER = new DispatchingDiagnosticRenderer(MAP);
 
     static {
+
+        // TODO: remove when tuples are completely dropped
+        MAP.put(TUPLES_ARE_NOT_SUPPORTED, "Tuples are not supported. Press Alt+Enter to replace tuples with library classes");
+
         MAP.put(EXCEPTION_WHILE_ANALYZING, "{0}", new Renderer<Throwable>() {
             @NotNull
             @Override

compiler/frontend/src/org/jetbrains/jet/lang/resolve/TypeResolver.java

@@ -37,6 +37,7 @@ import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
 
+import static org.jetbrains.jet.lang.diagnostics.Errors.TUPLES_ARE_NOT_SUPPORTED;
 import static org.jetbrains.jet.lang.diagnostics.Errors.UNSUPPORTED;
 import static org.jetbrains.jet.lang.diagnostics.Errors.WRONG_NUMBER_OF_TYPE_ARGUMENTS;
 
@@ -180,6 +181,9 @@ public class TypeResolver {
 
                 @Override
                 public void visitTupleType(JetTupleType type) {
+                    // TODO: remove this method completely when tuples are droppped
+                    trace.report(TUPLES_ARE_NOT_SUPPORTED.on(type));
+
                     // TODO labels
                     result[0] = JetStandardClasses.getTupleType(resolveTypes(scope, type.getComponentTypeRefs(), trace, checkBounds));
                 }

compiler/frontend/src/org/jetbrains/jet/lang/types/expressions/BasicExpressionTypingVisitor.java

@@ -356,6 +356,9 @@ public class BasicExpressionTypingVisitor extends ExpressionTypingVisitor {
 
     @Override
     public JetTypeInfo visitTupleExpression(JetTupleExpression expression, ExpressionTypingContext context) {
+        // TODO: remove this method completely when tuples are droppped
+        context.trace.report(TUPLES_ARE_NOT_SUPPORTED.on(expression));
+
         List<JetExpression> entries = expression.getEntries();
         List<JetType> types = new ArrayList<JetType>();
         for (JetExpression entry : entries) {