Refactor common logic of SsaBuilder.visitSend.

lib/compiler/implementation/ssa/builder.dart

Index: lib/compiler/implementation/ssa/builder.dart
diff --git a/lib/compiler/implementation/ssa/builder.dart b/lib/compiler/implementation/ssa/builder.dart
index 0d38ec3cc1b937adb2ebf17c0e87ff87f28db9c8..025ef8a613182339b19dc1aa25d0d32e93315a24 100644
--- a/lib/compiler/implementation/ssa/builder.dart
+++ b/lib/compiler/implementation/ssa/builder.dart
@@ -786,7 +786,7 @@ class JumpHandlerImpl implements JumpHandler {
   }
 }
 
-class SsaBuilder implements Visitor {
+class SsaBuilder implements Visitor, SendVisitor {
   final SsaBuilderTask builder;
   TreeElements elements;
   final Interceptors interceptors;
@@ -2247,7 +2247,7 @@ class SsaBuilder implements Visitor {
                       inputs));
   }
 
-  handleForeignSend(Send node) {
+  visitForeignSend(Send node) {
     Element element = elements[node];
     if (element.name == const SourceString('JS')) {
       handleForeignJs(node);
@@ -2401,37 +2401,21 @@ class SsaBuilder implements Visitor {
     }
   }
 
+  visitGetterSend(Send node) {
+    generateGetter(node, elements[node]);
+  }
+
   visitSend(Send node) {
-    if (node.isSuperCall) {
-      visitSuperSend(node);
-    } else if (node.isOperator && methodInterceptionEnabled) {
-      visitOperatorSend(node);
-    } else if (node.isPropertyAccess) {
-      generateGetter(node, elements[node]);
-    } else if (Elements.isClosureSend(node, elements)) {
-      visitClosureSend(node);
-    } else {
-      Element element = elements[node];
-      if (element === null) {
-        // Example: f() with 'f' unbound.
-        // This can only happen inside an instance method.
-        visitDynamicSend(node);
-      } else if (element.kind == ElementKind.CLASS) {
-        compiler.internalError("Cannot generate code for send", node: node);
-      } else if (element.isInstanceMember()) {
-        // Example: f() with 'f' bound to instance method.
-        visitDynamicSend(node);
-      } else if (element.kind === ElementKind.FOREIGN) {
-        handleForeignSend(node);
-      } else if (!element.isInstanceMember()) {
-        // Example: A.f() or f() with 'f' bound to a static function.
-        // Also includes new A() or new A.named() which is treated like a
-        // static call to a factory.
-        visitStaticSend(node);
-      } else {
-        compiler.internalError("Cannot generate code for send", node: node);
-      }
-    }
+    node.analyse(
+        methodInterceptionEnabled: this.methodInterceptionEnabled,
+        elements: this.elements,
+        sendVisitor: this
+    );
+  }
+
+  // TODO(antonm): migrate rest of SsaBuilder to internalError.
+  internalError(String reason, [Node node]) {
+    compiler.internalError(reason, node: node);
   }
 
   // TODO(karlklose): share with resolver.