[ESNext] Implement DynamicImportCall

src/crankshaft/typing.cc

Index: src/crankshaft/typing.cc
diff --git a/src/crankshaft/typing.cc b/src/crankshaft/typing.cc
index 9713e4fd6fabda36dfb91e636694b0a3627b5908..3e7cb71de5cc3e194cad61bf0306932a70a96cf7 100644
--- a/src/crankshaft/typing.cc
+++ b/src/crankshaft/typing.cc
@@ -757,6 +757,10 @@ void AstTyper::VisitEmptyParentheses(EmptyParentheses* expr) {
 
 void AstTyper::VisitGetIterator(GetIterator* expr) { UNREACHABLE(); }
 
+void AstTyper::VisitImportCallExpression(ImportCallExpression* expr) {
+  UNREACHABLE();
+}
+
 void AstTyper::VisitThisFunction(ThisFunction* expr) {}