transformers tests

Author: Arthur Ozga

src/compiler/transformers/es2017.ts

@@ -125,6 +125,7 @@ namespace ts {
                 visitNodes(node.modifiers, visitor, isModifier),
                 node.asteriskToken,
                 node.name,
+                node.questionToken,
                 /*typeParameters*/ undefined,
                 visitParameterList(node.parameters, visitor, context),
                 /*type*/ undefined,

src/compiler/transformers/esnext.ts

@@ -541,6 +541,7 @@ namespace ts {
                     ? undefined
                     : node.asteriskToken,
                 visitNode(node.name, visitor, isPropertyName),
+                visitNode(node.questionToken, visitor, isToken),
                 /*typeParameters*/ undefined,
                 visitParameterList(node.parameters, visitor, context),
                 /*type*/ undefined,

src/compiler/transformers/ts.ts

@@ -2049,6 +2049,7 @@ namespace ts {
                 visitNodes(node.modifiers, modifierVisitor, isModifier),
                 node.asteriskToken,
                 visitPropertyNameOfClassElement(node),
+                node.questionToken,
                 /*typeParameters*/ undefined,
                 visitParameterList(node.parameters, visitor, context),
                 /*type*/ undefined,