Refactor handling of compounds.

pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.dart

Index: pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.dart
diff --git a/pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.dart b/pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.dart
index fbb348bdf1ea5f2e9f245bd60a710a79c4d880f2..94fc00f1bfc9563b48af2d280ab733dad8ede99e 100644
--- a/pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.dart
+++ b/pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.dart
@@ -1917,7 +1917,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorUnresolvedCompound(
+  ir.Primitive visitUnresolvedCompound(
       ast.Send node,
       Element element,
       op.AssignmentOperator operator,
@@ -1979,7 +1979,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorUnresolvedPostfix(
+  ir.Primitive visitUnresolvedPostfix(
       ast.Send node,
       Element element,
       op.IncDecOperator operator, _) {
@@ -1988,7 +1988,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorUnresolvedPrefix(
+  ir.Primitive visitUnresolvedPrefix(
       ast.Send node,
       Element element,
       op.IncDecOperator operator, _) {
@@ -2201,7 +2201,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorClassTypeLiteralCompound(
+  ir.Primitive visitClassTypeLiteralCompound(
       ast.Send node,
       ConstantExpression constant,
       op.AssignmentOperator operator,
@@ -2214,7 +2214,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorClassTypeLiteralPostfix(
+  ir.Primitive visitClassTypeLiteralPostfix(
       ast.Send node,
       ConstantExpression constant,
       op.IncDecOperator operator, _) {
@@ -2226,7 +2226,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorClassTypeLiteralPrefix(
+  ir.Primitive visitClassTypeLiteralPrefix(
       ast.Send node,
       ConstantExpression constant,
       op.IncDecOperator operator, _) {
@@ -2238,7 +2238,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorDynamicTypeLiteralCompound(
+  ir.Primitive visitDynamicTypeLiteralCompound(
       ast.Send node,
       ConstantExpression constant,
       op.AssignmentOperator operator,
@@ -2251,7 +2251,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorDynamicTypeLiteralPostfix(
+  ir.Primitive visitDynamicTypeLiteralPostfix(
       ast.Send node,
       ConstantExpression constant,
       op.IncDecOperator operator, _) {
@@ -2263,7 +2263,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorDynamicTypeLiteralPrefix(
+  ir.Primitive visitDynamicTypeLiteralPrefix(
       ast.Send node,
       ConstantExpression constant,
       op.IncDecOperator operator, _) {
@@ -2275,7 +2275,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorFinalLocalVariableCompound(
+  ir.Primitive visitFinalLocalVariableCompound(
       ast.Send node,
       LocalVariableElement variable,
       op.AssignmentOperator operator,
@@ -2298,7 +2298,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorFinalParameterCompound(
+  ir.Primitive visitFinalParameterCompound(
       ast.Send node,
       ParameterElement parameter,
       op.AssignmentOperator operator,
@@ -2321,7 +2321,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorFinalStaticFieldCompound(
+  ir.Primitive visitStaticFinalFieldCompound(
       ast.Send node,
       FieldElement field,
       op.AssignmentOperator operator,
@@ -2346,7 +2346,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorFinalSuperFieldCompound(
+  ir.Primitive visitFinalSuperFieldCompound(
       ast.Send node,
       FieldElement field,
       op.AssignmentOperator operator,
@@ -2373,7 +2373,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorFinalTopLevelFieldCompound(
+  ir.Primitive visitTopLevelFinalFieldCompound(
       ast.Send node,
       FieldElement field,
       op.AssignmentOperator operator,
@@ -2397,7 +2397,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorLocalFunctionCompound(
+  ir.Primitive visitLocalFunctionCompound(
       ast.Send node,
       LocalFunctionElement function,
       op.AssignmentOperator operator,
@@ -2410,7 +2410,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorLocalFunctionPostfix(
+  ir.Primitive visitLocalFunctionPostfix(
       ast.Send node,
       LocalFunctionElement function,
       op.IncDecOperator operator,
@@ -2423,7 +2423,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorLocalFunctionPrefix(
+  ir.Primitive visitLocalFunctionPrefix(
       ast.Send node,
       LocalFunctionElement function,
       op.IncDecOperator operator,
@@ -2541,7 +2541,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorTypeVariableTypeLiteralCompound(
+  ir.Primitive visitTypeVariableTypeLiteralCompound(
       ast.Send node,
       TypeVariableElement element,
       op.AssignmentOperator operator,
@@ -2554,7 +2554,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorTypeVariableTypeLiteralPostfix(
+  ir.Primitive visitTypeVariableTypeLiteralPostfix(
       ast.Send node,
       TypeVariableElement element,
       op.IncDecOperator operator, _) {
@@ -2566,7 +2566,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorTypeVariableTypeLiteralPrefix(
+  ir.Primitive visitTypeVariableTypeLiteralPrefix(
       ast.Send node,
       TypeVariableElement element,
       op.IncDecOperator operator, _) {
@@ -2578,7 +2578,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorTypedefTypeLiteralCompound(
+  ir.Primitive visitTypedefTypeLiteralCompound(
       ast.Send node,
       ConstantExpression constant,
       op.AssignmentOperator operator,
@@ -2591,7 +2591,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorTypedefTypeLiteralPostfix(
+  ir.Primitive visitTypedefTypeLiteralPostfix(
       ast.Send node,
       ConstantExpression constant,
       op.IncDecOperator operator, _) {
@@ -2603,7 +2603,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   }
 
   @override
-  ir.Primitive errorTypedefTypeLiteralPrefix(
+  ir.Primitive visitTypedefTypeLiteralPrefix(
       ast.Send node,
       TypeConstantExpression constant,
       op.IncDecOperator operator, _) {